Manga: Gentei Kareshi; Limitedy Boyfriend; 限定カレシ
Author: YAMASAKI Uni
Plot: Daiki, a university student, fell in love at first sight with his beautiful, black-haired classmate, Mitsui. One day, when he went to a goukon, he sighted a person near the store who looked like Mitsui. After Daiki had followed that person, what he saw was—?!