Kohei is a high school student whose passion is photography. Bright, cheerful, and full of curiosity, Kohei declares his love for the school doctor, Kenichiro Tachibana, after meeting him in what's called the Locked Infirmary. He isn't shy about his feelings, but Kenichiro seems to have a past... With the earnest affection of a puppy, Kohei pushes on. How will he win the love of the sulky and impregnable older man who's full of mature appeal in this love comedy between opposites who are linked by photography!?