If you could pitch a new IP to Nintendo what would it be?

[Esperahol]

I personally would pitch something that combines horror and RPG elements... nothing too explicitly violent, but maybe something like Ester or the Sub games. I mean it's not like Nintendo has never had horror and adult themes on their console (looking at you Shattered Memories and RE4). I don't know... it's just an idea. What are your ideas in regards to this?