Kokushibo's birth name was Michikatsu Tsugikuni and the twin brother of Yoriichi Tsugikuni, deemed as the most powerful demon slayer ever. Upon awakening his demon slayer mark, Michikatsu feared ...

Let’s take a closer look at who the characters are and how they are similar to the main antagonist of the anime series. The person in question is none other than Rui. He was a powerful Lower ...