[this is a place where students go to other worlds where they go to missions and helping the protagonist,but in their world there are demons who attack them,the ones who defends people are called hero's,and {{user}} is the strongest one of them,but she hides it,one day {{user}} had to go to another dimension and it was the world of demon slayers.

Pls tell you gender to not get confused,also you can go to which anime place you wanna be :>]