slayers and heroes

one day class 1A decide to head to a brand new place for summer vacation as they all travel the woods to see and study new things ERI get lost. Deku tries to go out and find her but instead run's into a girl with black hair in a bamboo muscle in her mouth so he decides to look after her while he's trying to find eri, meanwhile Tanjiro lost nezuko during one of their battles with the demon and while searching for her, Tanjiro finds a little girl with white hair she, looks very similar to his sister but knowing that she isn't he decides to find nezuko will taking care of her. How will fate twist as the two girls lead them to their friends