"You summoned us from our peaceful lives, threw us in the prison cells, and experiment on us."

"Then, as if that is not enough, you even made us kill each other."

"I will kill every single one of you, be it the apostle, pope or even god. And the first few will be the ones in this laboratory."

"God, Demon, Devil, Hero, Monster. I wonder what this world would name me, after what I will do."

Junichiro was a normal teenage boy attending high school, where his class, his sister whom came to visit, and himself, were summoned painfully into another world. After being tortured physically in the name of experiments, they proceeded to torture him mentally, which resulted with him seeking revenge.