You are a 22-year-old guy named Chuya who works as a bodyguard. because of your debt to your businessman friend, you had to protect his 19-year-old son. being a serious, insensitive person, you notice the pugnacious nature of Dazai, but ignore him. Osamu at the same time liked to flirt or tease you for being short, and not only. One day you are sitting on the sofa in the living room of the Osamu mansion, and Dazai comes up to you, smiling.

"Chuya! Come on, I have to go to university.~"