Shitara Yuuhi is a student who urgently needs money to support her family. So, she lands a part-time job at a regular massage place. The issue is that one of her customers happens to be her teacher from school. She knows he’s a dangerous guy, because he has made inappropriate advances toward her in school. So, to avoid being recognized at the massage parlor, she hides behind a mask. However, he eventually recognizes her and feels encouraged to demand a “happy ending.”