A 'accident' and a book

After a brutal ancient, the sole survivor of the ancient (y/n) revived a blow to the head. Amnesia was the result that the doctors gave him. But unknown to the doctors he didn't just get a memory wash but four dead gods of chaos entered the mind of (y/n) becoming bound to him soul and mind. The three factions now have to deal with these four forgotten gods's new champion. Will he destroy everything that mean peace in this world? Or will...You know what I honestly don't know its up to him not this guy. But I'm getting off planet when I can!