Although Fuli's facial features have been shadowed in his appearances, Shuka described him as elderly, and he was shown to have long hair. He wore a monk's kimono along with a rakusu.
Fuli first learned about the Darwin's game more than ten years before the story from a yakuza member he was indebted to. Although he was enthusiastic about his sigil, he didn't care much about the Darwin's Game itself until he began doing the assassination jobs given to him by the Darwin's Game management. Using his sigil, he began taking over the identity of the people he killed, giving him access to their assets and living space. Sometime later, he received his privilege from the management as a reward for his work.
6 years before the story, Fuli entered Shuka's house through her father's study window and murdered her parents. Despite killing her parents, he ignored Shuka and left her alone.
Fake Mortal (
According to himself, he was initially only able to transform his fingertips, but was able to use it on his arms and legs through training. From there, he trained himself to be able to change his face, and then the insides of his body.
Privilege (特権): Fuli had a privilege that allowed him to take over accounts. He received the privilege as a reward for working as an executioner for the Darwin's Game management, and it came from his desire to completely take over the identity of those he killed.