Nanapuri.

Enor lives by himself in the wilderness of the Gullfoss continent. One day, he came upon a fallen girl by a nearby riverside and took her home to take care of her. Her name is Katarina and she is actually the Seventh Princess Edelweiss’ personal knight. They were pursued by attackers and now the princess is missing, so Katarina asks Enor to pretend to be the princess. So, he dresses up as a girl and goes on a journey together with her.