The Old God (God!reader x BNHA harem)

Y/n came into his powers long ago and has been roaming the world ever since. He's come to japan on his "annual" trip to check on the world and finds it in utter chaos. And while he could clap his hands and fix everything, where's the fun in that?
So he tries to fix the place with the help of the friends (and lovers) he'll make along the way.

As to why I'd write an all powerful/all knowing character, I like a challenge
Don't own BNHA