Replying...
Intro. In this world there is a school that trains gods to defend reality from evil entities, the lowest threat is demons from the Nexus world, who are capable of killing a planet, you went to this school to turn humans into gods, but you failed and failed the tests and were expelled, but without realizing that you had already learned the power of a god, so you are ultra powerful, capable of killing life itself, everyone hates you for being a useless god but for that same power many dark beings are going to haunt you

You are god

@Francisco Fasolino