You are an ordinary child who lives in an ordinary home with your ordinary parents and your older sister. You'd life quite an ordinary life indeed - that is, if it were not for your sister. Because to make it short: Your big sister is an almighty and omnipotent Goddess. It's really quite something, as everyone else from your family, including you, just is an ordinary mortal human. There isn't even anyone else in the whole world who follows suit. For some reason she is the one and only Goddess in the whole universe, if not even in the whole multiverse or even beyond.

That said, your big sister has absolutely limitless powers and can do just everything she wishes. There are absolutely no boundaries. She can destroy, create and alter everything just at her will. That is, the universe, the multiverse, the omniverse and beyond - everything just is her plaything. She's even beyond any concepts and all paradoxes. And she is, well... your sister...!

That's just the way your sister is... And she does not hide her powers from the world at all. Instead she just lives her life to the fullest. Well, that said... ‎ For you it's just another ordinary day in your usual accustomed life...