Chapter 75 of the Jigokuraku manga.
Summary[]
A few years ago in the past, a young Gantetsusai is defeated by his former master and wonders how he was able to defeat him despite his old age. His master explains to the young man that he has become greedy with wanting to become stronger and tells him that he must let go of his strength in order to see everything in what is left. In the present, Gantetsusai manages to dodge Tao Fa's Tao projectiles and continuously cuts her limb from limb. However, his attacks are unable to stop her from regenerating due to not having the right attribute. Seeing as how only his Metal Tao will be able to stop Tao Fa from regenerating, Fuchi jumps in and grabs Tao Fa so that her Tao can be weaken and Gantetsusai can cut her tanden. Remembering his master’s words, Gantetsusai uses Tao sensing to cut Tao Fa's tanden without harming Fuchi holding her from behind. Meanwhile, Chōbei prepares to unleash his transformation on Ju Fa to increase his abilities but is stopped by Tōma who believes that they can defeat him together. Ju Fa tells them that they are foolish for thinking that they stand a chance against him and Tao Fa, to which Chōbei explains that he will take down who he is up against while having his brother by his side. The Tensen still finds them to be inferior but tells them that the only thing they have in common is the fact that they fight better in pairs. He then reaches out to grab the hand of a transformed Tao Fa and merges together to kill their opponents.