This story is about a relationship between a teacher and his student, Homura. It just so happens that Homura's older sister, Kaori was the teacher's first girlfriend. Back then, the teacher would always use Homura as an excuse to run away whenever something happened, and he would never get in the "mood" whenever he was with Kaori. One day, while going through the exam papers, he noticed that Homura wrote "I like you, sensei" in a corner. Will he accept Homura's confession?
Side Story: Unbreakable Bone
The side story is of two childhood friends who meet again after 14 years. One is a policeman now, and the other is an ex-delinquent who is working at a ramen store.
Nee, Sensei