#they fight like they're already married ANASTASIA (1997)

Suguru Geto’s mental decline started. He lost his identity, no longer being apart of the strongest. As a result of this, he went on missions alone, and was trapped in a never ending work-cycle of exorcising curses, and consuming them [...] which led to him becoming more depressed.

[...] He killed everybody in the village, then later on, his own parents. He was done protecting the weak and instead was going to create a world of only Jujutsu Sorcerers — by eliminating the weak. This madness served as a form of enlightenment for him, as he no longer had to second guess his true hatred for humans.  (The Knight News)