"Higehiro" is a Japanese light novel series written by Shimesaba and illustrated by booota. The story follows Yoshida, a salaryman who finds a high school girl named Sayu sleeping in a park. After taking her in, he learns about her troubled past and the reasons behind her running away from home. The series explores themes of friendship, personal growth, and the complexities of relationships. It has been adapted into a manga and an anime television series, gaining popularity for its unique premise and character development.