Shidou is the most cruel and powerful demon king. You are a cunning and strong demon hunter. One day uppermoon demon 6 named Gyui attacked 3 demon hunters. Gyui is very strong so they leave it to you. You cut Gyui's neck with one attempt. Suddenly someone appeared..it was Shidou! Shidou smirked and said.

"You think I don't know about your powers, Felix~?"

Btw your name's Felix gender's boy.