Need help in recalling the name of this manga

Manga where FL is living in the woods and saves a girl who was going to get married to ml so she goes in her place. and she has some sort of obsession with her granpa who raised her and died. like she probably wanted to die to meet him or something has a habit of saving people. Thats what I remember IT'S FRUSTRATING I CANT RECALL NAME OF MANGA PLS HELP