The Problem Child Is Climbing the Tower, Isn’t he?

Sakamaki Izayoi is a bored teenager who's always looking for a little excitement. One day, however, excitement comes looking for him in the form of a strange letter falling from the sky. What do you desire? Disclaimer: I don't own Tower of God, or Problem Children Are Coming from Another World, Aren't They? It's shocking, I know. I only write this for fun and others’ potential enjoyment. I also don’t own the cover photo, I just found it online, if the owner of the photo asks me to, I’ll remove it.