菜緒と上原くんは、中学時代の同居(!?)を経て、現在は大学生で半同棲中の普通のカップル。一緒に住んでる状態のことをもちろんずっと両親に内緒にしていた菜緒だけど、ある日突然、お父さんが部屋に来て…!?
Nao and Uehara-kun are an ordinary couple who lived together in junior high school (!?) and are now college students living together semi-living together. Of course, Nao kept the fact that they were living together a secret from his girlfriend’s parents, but one day, her father suddenly came to her room…!?