What I remember: -MC is from a powerful family, but they ended up losing their power to another more influential entity, being exiled. -In this world there are Gods and they can interact with mortals. -I think the MC's family was descended from a very powerful God. -The world is similar to an RPG. After a ritual he can choose his "class". -The most powerful families are descendants of some God, making that each person of the clan could awaken the power of that God (it is related to blood). -The MC awakens this power, the family is concerned, because that power that exiled them will try to kill the MC if they discover that he has deprived the power related to the God of his family. The family is worried and sends him and his sister (or friend, or both, I don't remember) to a very powerful school. -The MC performs the ritual and ends up unlocking the killer class of gods. -The director, who is Odin, ends up seeing this and decides to train him and use him in his revenge against another God who killed his son Thor. -I don't remember much, but I was about to start a war that would involve the Gods and mortals. I just remember that, sorry for any mistake, I'm using google translator.