Goi-sensei to Tarou
五井先生と太郎
Tarou is the only student in the class that Goi-sensei uses an honorific for. This extremely bothers Tarou as he's the only Tarou in the class and it is unneeded. Over winter break Goi-sensei is hospitalized and Tarou goes to visit him and hears the story of why he uses an honorific for Tarou.