After the shogun called for criminals to acquire the Elixir of Life from the dangerous island known as Kotaku, in exchange for a pardon for their past crimes, Fuchi joined in the expedition team as one of the Yamada Asaemon monitors and was assigned to keep watch over the criminal, Tamiya Gantetsusai. Shortly after, Fuchi became a part of a united front formed from the remaining surviving criminals and executioners to defeat Lord Tensen, work together in capturing the elixir, and have everyone escape the island.
Fuchi had blonde hair with bangs and a hime-cut. He also had an ahoge on the top of his head. His most noticeable feature was the shadow below each of his eyes. He wore a dark kataginu on top of the standard attire of a Asaemon, which was a white robe with a bell tied on the left collar along with a hakama held together with a waist cord, holding a pair of tools for dissecting, and sandals. He carried two swords strapped to his back.
Fuchi was a rational thinker that had a good sense of judgement in situations and carried a no-nonsense view when it came to matters that he deemed were unscientific, pointless, and illogical, such as Gantetsusai's and Gabimaru's imaginary battle and the time he spent wasting on trying to unlock the ability to use Tao. To best get around obstacles, Fuchi focused on gathering and gaining a clear understanding of new information. This included wearing down his enemies instead of trying to kill them in order to extract intel.
He had great pride as a Yamada Asaemon and did not tolerate anybody speaking disgracefully about the Yamada clan. He was very close with his Asaemon comrades and would give them nicknames instead of using honourifics. After having learned that a few of his comrades lives were taken, Fuchi became heart broken and briefly went into a more serious demeanor when talking to Mei, stating that his eyes had become more opened to the situation and bluntly told her that he was willing to hold her partially accountable depending on the information she gave him. He also did not care for traitors as he brushed off Tōma's gratitude for healing his wounded nose.
Even though the Yamada clan mainly deal with testing new swords and executions, Fuchi preferred, and had a deep passion, for studying the human anatomy to improve medical science that came with the trade. He whole-heartedly believed that anatomical research would save lives and despised those who thought so little of this study. This does not only apply to humans, Fuchi could become intrigued by any organism that had special qualities, such as the undying Lord Tensen or the Sōshin. When Gabimaru explained to Fuchi and Gantetsusai about Lord Tensen, Fuchi became startled to hear of such a being and asked many questions to know more about them. It was for this reason that Fuchi was willing to ally with him. This preference however can be seen as an obsession. After Gabimaru and Gantetsusai killed many Sōshin, Fuchi cackled in delight as he got the chance to examine their corpses and was quick to think that a dissection would reveal a few answers to Mei's mysterious growth rate. During his fight with Tao Fa, Fuchi expressed his satisfaction of knowing that he could revolutionize medical science from his first hand experience of feeling pain from her Tao attacks, leading the Tensen to go so far as to state that he was crazy in the head. This behavior became sort of a running-gag as the series went on.
Fuchi was also a kind person that put the lives of others first, which acted as his driving force to pursue anatomical research. He treated Gantetsusai's amputated left hand by replacing it with a hook, took the time to heal Gabimaru's injuries as much as he could after his fight with Aza Chōbē, treated Tōma's wound despite him being a traitor of the Yamada clan, and used the tsuba on his sword as Gantetsusai's eyepatch, which was noted by Shugen as misplacing his Asaemon soul. Upon learning about the deaths of his Asaemon comrades, Fuchi stated that he understood the value of life that he could not learn from his studies. It was for this reason that he allowed the Aza brothers' enslaved Dōshi to roam free instead of dissecting him as he had hoped. He had wished that both the surviving criminals and executioners together would be able to return home safely and was willing to defy Shugen from attacking Gantetsusai if it meant not seeing another life taken away. Fuchi's kind hearted nature carried with him towards the end. Even though his life was in great peril after getting cut down by Shugen, Fuchi chose to use whatever strength he had to treat Gantetsusai's injuries instead and did not carry any ill feelings for Shugen's actions.
Although he was an executioner, after his experience working together with the surviving convicts, Fuchi found that both "crime" and "evil" were entirely different from one another, with Tamiya Gantetsusai as an example. From a scientific view point, Fuchi found that samurai and criminals were not so different since they are structured the same and had a will to live, which was reason enough for the survivors to band together in trying to return home.
- Main article: Island Arc
After arriving on the island with his assigned criminal, Tamiya Gantetsusai, Fuchi hears his story on how he got arrested. He then hears him mock the Yamada clan and sets him straight. Later, Gantetsusai tells him his plan of finding the elixir by eliminating the competition. Fuchi wonders if this will end well for him since only a few criminals will survive on the island and the shogun may send out a "certain stronger group" if he becomes impatent, which causes Fuchi to be frighten of the thought. After Gantetsusai cuts off his hand from being stung by a strange butterfly, Fuchi is shocked to see it blooming with flowers. They are then attacked by insects and a monster. They then move on having dealt with the monster.
Lord Tensen Arc
- Main article: Lord Tensen Arc
While traveling in Hōrai, the two stumble upon Gabimaru who is badly injured. Before they can attack, the two criminals predict each others movements. Believing that it was pointless, Fuchi stops them and wanted to extract information from Gabimaru's experience on the island. Gabimaru wanted to team up with them and gave them information on what he acquired on the island. The ninja then told them of his experience on the island. After hearing him, Fuchi became interested in Lord Tensen's regenerative abilities and asked about its internal organs. Gantetsusai becomes convinced and agreed to teaming up but Fuchi asked if it was a good idea since Gabimaru was also seeking the pardon. Gantetsusai says that he had no interest in the pardon and only seek to become a legendary figure, which Fuchi found ridiculous. Taking interest in the undying organism known as Lord Tensen, Fuchi also agrees to teaming up with Gabimaru as well. Fuchi suggest exchanging intel which Gabimaru agrees and starts off with Mei but is shocked to see her age. After Gabimaru asked her what was the power she used to save him, Mei tells them that she uses Tao but confuses them with her odd explanation. The group are then approached by a crowd of Sōshin.
As Gabimaru and Gantetsusai kill the Sōshin, Fuchi starts to examine their corpses in delight. The three then notice that Mei has been taken by a Dōshi who is pleased with their meeting and addresses her in a polite manner. After learning from the Dōshi that Mei is similar to Lord Tensen, Fuchi asks Gabimaru if they should be concern with the situation. He sees that Gabimaru has instantly appeared by Mei's side and tells the Dōshi that he would protect her and prepares to fight him along with another Dōshi that appears beside him. He watches as Gantetsusai and Gabimaru fight the Dōshi's. He then listens as the Dōshi's explain why they needed Mei, which was to have her as their partner for intimate congress so they can combine their Yang with her in Yin and achieve mastery of Tao. Gantetsusai becomes confused as to what intimate congress meant and looks towards Fuchi, who answers saying that it meant sexual intercourse. After hearing enough of their reasoning for wanting Mei, Gantetsusai and Gabimaru become furious and defend Mei from behind while Fuchi stands by her side.
After interpreting Mei's words about Tao and seeing as Gabimaru and Gantetsusai are having trouble fighting the Dōshi's, Fuchi yells out to Gabimaru that in order to learn Tao he must accept both his strength and weaknesses. Mei helps Gabimaru sense his Tao by touching his hand but still has difficulty awakening it. Fuchi further explains that he must accept his weakness but sees that he is still having a hard time understanding quickly. However, Gabimaru says that he got the idea and steps forward to face the Dōshi's once more. Fuchi, Gantetsusai, and Mei watch in shock by how Gabimaru is managing to dodge the Dōshi's invisible attacks and how he was able to dispel the Centipede Dōshi's transformation. After the battle ended with Gabimaru and Gantetsusai killing the Dōshi's, Gabimaru faints and is carried along with them halfway up the valley.
The group stops and takes refuge in a cave. Once Gabimaru awoke, Fuchi begins discussing what they know so far about Tao. Fuchi goes over the hindering attributes and states that it might be the key to killing Lord Tensen. He then ends the discussion so they can rest for tomorrow.
The next day, the group travels up the valley and suddenly encounter Aza Chōbē and Tōma. After Chōbē attacks Gabimaru, Fuchi sees that Tōma is no longer an ally and has been collaborating with Chōbē. Fuchi watches from the sidelines as Gabimaru viscously fights Chōbē, comparing their battle to a fight between beasts. Chōbē orders Tōma to attack the others, which the Asaemon becomes shocked after hearing Tōma call him brother. Gantetsusai gets angry after Tōma went after him because he is missing his left hand and angrily fights back. Fuchi tells him that he can't allow it since he is still a member of the Yamada clan, however, Gantetsusai refuses to listen.
While fighting Gantetsusai, Tōma orders the Dōshi they enslaved to go after Fuchi and Mei. Fuchi takes out his swords and stands by Mei to protect her. After warding off the Dōshi, Fuchi spots Chōbē transformed. While observing their fight, Fuchi notices that Gabimaru is in critical condition and becomes confused as to why he was risking his life to kill Chōbē even though his goal was to receive the pardon. He then witnesses the fight end after Mei releases her Tao to create a massive crater and has Chōbē fall down to the valley. Fuchi and Gantetsusai wonders how she was able to accomplish this and are shocked to see her body mature once again. Fuchi suggests a dissection to find answers but Gantetsusai found him to be ridiculous. The two then wish they had some answers to all the mysterious they had witnessed.
The group travels to the Hōrai gate and are met by Sagiri, Shion, Yuzuriha, and Nurugai. He then asked Sagiri what has happened to them since they arrived and the whereabouts of Tensa and Senta. After he sees Hōko's head talking in Sagiri's hands he becomes fascinated and answers yes to his question about them defeating the Dōshi's they encountered. Later, after learning about the deaths of his Asaemon allies, Fuchi mourns their passing near Senta's grave. He then walks back to the group explaining that Gabimaru's injuries came from his constant fighting and that he tried to do what he can to heal him. Gabimaru regains consciousness and attacks Sagiri after she becomes suspicious about what happened to him but is blocked on time by Fuchi and Shion. Sagiri explains to them that Gabimaru has lost a lot of his Tao, and as result, he has also lost his memories. They then watch as Sagiri tries to restore Gabimaru's Tao and return him back to his former self.
The group then relocates to escape enemy territory. Seeing as how he is not in the mood to dissect him after finding out the death of his fallen comrades, Fuchi allows the captured Dōshi to leave. He then walks back over to the cave and finds that Mei is feeling ill. He agrees in helping to heal Mei's illness but demands that she tell him everything they need to know about herself and Lord Tensen. After interpreting Mei's words, he tells Sagiri and Yuzuriha that Lord Tensen, the monsters, and the island were created by a Hōshi in order to research the secrets of immortality. He then explains that the potion known as Tan is created from the Tao harvest and extracted from the lives of humans and lengthens Lord Tensens life spans but can be killed if their Tao is depleted. After, Yuzuriha asks why the Tensens are going further with their research, Mei answers that the possibility lies with the will of their creator Xu Fu. Mei then falls back from exhaustion and shows that her arm has turned into a branch. She explains that her body has been damaged by Rien and needs recovery from another source of Tao, which Hōko kindly offers. After she absorbs his Tao and reverts back to her child body fully healed, the four gather back with the others.
After regrouping, Mei warns everybody that she senses a second party arriving on the island. Fuchi and Shion believe that it is Shugen and the other Asaemon as reinforcements, along with backup criminals. Sagiri vouches for Shugen's strength and believes that he is kind hearted even though he is known for his bad reputation for the execution of the Silver Serpent yakuza group. Hearing Sagiri back up Shugen, Fuchi adds that he was Sagiri's first crush, though she explains that she merely admires him. Shion denies that Shugen will become an ally after explaining the full story of the Silver Serpent's group execution and how he does not cooperate with criminals or allow any Asaemon to work with them as well. Moving on, Shion presents his strategy of finding the Tan elixir and an escape route by separating everyone into two teams and using their Tao attributes to hinder and defeat each member of Lord Tensen. However, Yuzuriha suggests finding a way off the island and go into hiding. Shion takes her recommendation into account and gives everyone the option of working separately or working together in completing the mission. Unanimously, everyone decides to follow Shion into the came and work together.
- Main article: Hōrai Arc
Fuchi translates Mei's words and relays the information to the group, revealing that Hōrai has a floodgate harboring many ships that they can use to escape the island. The group then proceeds to learn how to use Tao from Gabimaru and Yuzuriha in preparation for their infiltration mission. After the lessons were over, Fuchi is placed in the Escape Route Securing Team along with Gantetsusai. Shion, Nurugai, and Mei. Gantetsusai suggests that they should have Mei depart alone without having to wait for the Elixir Retrieval Team since she wishes to leave the island, however, Gabimaru asks her if there was anything she needed to do before leaving. Fuchi offers to translate for Mei but instead chooses to talk for herself, confessing that she wanted to confront Rien and Xu Fu before leaving, which Gabimaru promises to fulfill.
After reviewing their strategy to infiltrate the palace, the group decides to make their move tonight. The Escape Route Team receives a signal from the Elixir Team that it is okay to enter. The team advances into the palace but are met by a sudden mist, causing Fuchi, Gantetsusai and Tōma to get separated from Shion and Nurugai. The three then encounter Ju Fa and Tao Fa, along with the appearance of Aza Chōbē, in the Bōchū Jutsu Temple who plan to capture them as sacrifices for their master. Knowing that their plan to avoid Lord Tensen has failed, the group moves on to their second plan of fighting against them.
Upon reuniting with his brother again, Fuchi and Gantetsusai allow Tōma to be by his side with no worries about him being a threat. After walking upstairs to join him, the brothers attack Ju Fa and Tao. Fuchi and Gantetsusai then watch in shock as Tao Fa stands back up regenerating in front of them and compliments her body after she removes her robes in preparation for their fight. She first rushes towards Gantetsusai and sends him crashing to a pillar and then draws her attention to Fuchi who she found to be cute and offers to preform Bōchū Jutsu with him. Fuchi responds by slicing off her hand and declines her advances, saying that he only had interests in her organs.
Gantetsusai and Fuchi fight Tao Fa but are unable to counter against her Tao abilities. Fuchi tells Gantetsusai that they need to form a strategy against her but is told by the swordsman that he refuses to listen. The two are quickly defeated but stand back up with full excitement of their own ambitions. Fuchi sees that Gantetsusai has managed to somehow dodge one of Tao Fa's Tao attacks and slices through her. However, he is immediately sent crashing back with the Tensen believing that it was only pure luck. Fuchi jumps in to attack Tao Fa single handedly so Gantetsusai can observe how Tao works but is grabbed by the neck as Tao Fa hits him with a number of invisible Tao projectiles. She remarks that she found it sweet that he was willing to take her attacks head on in order to help his "friend". Fuchi disagrees with her statement but remembers his past statement of believing that they have a relationship that came close to friendship since the criminals and executioners on the mission have formed a connection with one another. Tao Fa then prepares to attack with another set of Tao projectiles, causing Fuchi to sense that he is in danger but is suddenly grabbed by Gantetsusai who has gained the ability to sense Tao after blinding himself.
Despite his success in being able to sense Tao, Fuchi knows that in order to defeat Tao Fa he needs to use his Metal Tao. He then comes up with the idea of holding on to Tao Fa to weaken her Tao and have Gantetsusai make the cut to her tanden. Gantetsusai manages to make a precise cut through Tao Fa's tanden and defeat her. However, the two see that Tao Fa has transformed and reaches out to Ju Fa. The two then fuse together to enter their Kishikai.
Fuchi and Gantetsusai try to cover their ears after the monster starts to emit a loud scream. Once the loud noise ceased, Fuchi warns Gantetsusai that he needs to administer first aid before he can continue fighting but has it turned down. He then notices Gantetsusai starting to laugh uncontrollably by one of the spores released by the monster. Fuchi cuts the spore and has Gantetsusai return to normal. They then watch as Chōbē fight Ju Fa and Tao Fa but is quickly defeated. Fuchi suggests that the four of them should work together, reminding them that their main enemy is the monster and fighting each other comes later.
Chōbē defends against the monsters vines while Tōma grabs Fuchi's hand to strengthen his Metal Tao. Fuchi then comes in close to cut Tao Fa's tanden. The monster flees after Gantetsusai jumps in to attack and changes to its defensive form. Since the monster has two pair of tandens, Fuchi is told by Tōma to par up with Tōma to kill Tao Fa while he and Gantetsusai try to kill Ju Fa. Gantetsusai rushes in to cut away at the monsters vines to give Fuchi and Tōma an opening to attack, however, Fuchi notices that Gantetsusai has almost reached his limit. Fuchi is then protected by Tōma from being hit by the spores, reason being that he is crucial in his brothers plan. Gantetsusai manages to get below the monster by entering the pool and slashes through it, separating Tao Fa and Ju Fa. After being told Tao Fa's location within the body, Fuchi comes in with his Tao strengthen by Tōma to strike Tao Fa's tanden while Chōbē destroys Ju Fa's tanden. With the Kishikai body destroyed, the Tensens come out of the pool with their bodies in tatters. Fuchi holds Tao Fa and tells them that it was over for them as they slowly die.
After the battle ends, Fuchi administers first aid to the others and takes his tsuba apart from his sword to give it to Gantetsusai as an eyepatch for his missing left eye, followed by an argument with Tōma about its positioning. Chōbē reveals Lord Tensen's plan of using the Paradise Butterflies to infect the human race to create more Tan with the Banko. Knowing that the plan to stop Rien and leave the island has not changed, Fuchi asks Chōbē if he was willing to ally with the survivors, however, before he could get an answer, the palace starts to shake from the walls being breached by the Mōnshin horde led by the second landing party. Iwagakure shinobi then approach them with the order to eliminate the convicts, followed by the appearance of a Dōshi army who have come to eliminate the invaders. The Hōrai Palace becomes a warzone with both sides fighting against one another. Not wanting to get caught up in the conflict, Fuchi, Gantetsusai, Chōbē, and Tōma leave the scene and splits up until they find an escape route.
Fuchi and Gantetsusai continue forward but are met by Shugen who demands an answer from Fuchi as to why his criminal's hands were untied. Fuchi explains to Shugen that he and the surviving Asaemons had no other choice but to ally with the convicts in order to escape the island. Shugen accepts Fuchi's reasons but tells him to execute Gantetsusai now that he has arrived. Fuchi refuses since, stating that their top priority should be on finding a way off the island. Upon noticing that the tsuba on one of Fuchi's sword is being used as Gantetsusai's eyepatch, Shugen becomes provoked and engages in a fight with Gantetsusai. Shugen overpowers Gantetsusai and prepares to cut him down, however, Fuchi steps in to stop his attack. Fuchi explains that Gantetsusai is a criminal but he is not evil and says that he is prepared to defy him if it meant that no one else dies. Shugen sees that Fuchi still has a kind heart for others and ceases his assault, however, Shugen slashes Fuchi with no other choice but to follow his path of justice. Having been dealt with a critical wound, Fuchi falls down unconscious.
After Zhu Jin fused with the Banko, causing the palace to be blanketed with flowers, Fuchi and Gantetsusai's unconscious bodies became covered in flowers in front of Shugen. The Iwagakure shinobi arrive to give Shugen the Elixir of Life and warns him that Rien is about to depart from the floodgates. Shugen prepares to make his way to the floodates and orders the Iwagakure shinobi to confirm Gantetsusai's death underneath the flowers and to have Fuchi be brought to him if he is still conscious. After Shugen leaves, Shija undo's their transformation and throws two kunai to make sure that they are dead and leaves.
Fuchi wakes up back on his feet but starts to suffer from his wound. Seeing as how Gantetsusai is still badly injured, Fuchi musters up the rest of his strength to administer first aid. After finish healing his wounds, Fuchi lies down dead in front of Gantetsusai and hears him panicking over him after waking up. He also becomes delighted to hear that he called him by his name for the first time but knows that he does no have the strength to respond back. As Gantetsusai carries his body, Fuchi, in his last thoughts, warns Shugen not to underestimate the survivors since they are not willing to die easily and wishes the best of luck to both his allies and enemies.
Abilities and Powers
As the ninth ranked Asaemon, Fuchi was viewed as being one of the next suitable heads of the Yamada clan. After arriving on Kotaku, Fuchi became one of the first few in 1,000 years to have managed to survive the ordeals the island had to offer and reach Hōrai where Lord Tensen currently resides. He was able to ward off a Dōshi from attacking him and Mei (though the Dōshi was already badly damaged from his previous fight with Aza Chōbē).
Like every Asaemon, Fuchi had the capabilities of decapitating his victims with a single cut of his sword.
Fuchi possessed high understanding of anatomy, which allowed him to earn a ranking in the Yamada clan and make himself well-known in the clan as an expert. Fuchi's knowledge of anatomy also offerred him skills in dissecting. Even though she had skillfully analyzed a Sōshin's anatomy based on her swordsmanship, Sagiri knew that Fuchi could understand them at a deeper level. This was proven true as Fuchi was able to thoroughly examine the corpses of the Sōshin and determined that they were all structured differently. Fuchi also had knowledge in medical science and can concoct medicines or administrate first aid to his allies.
By using the same method as Japanese scholar, Sugita Genpaku, Fuchi was able to translate for others. This skill had mainly been used for interpreting Mei's words. Through this, Fuchi had also managed to gain an understanding of Tao.
Fuchi carried around two swords strapped to his back, one being a sword with a hook tip and the other being a jagged, saw-like blade. In addition, he also carried tools used for dissecting strapped to his waist.
- Fuchi ranked 14th in the manga's 1st Character Popularity Poll.