Izumi Kayo, who works as a surgeon at a university medical school affiliated hospital in the Sanin region, is in love with Katano Shuji, a lecturer who is taking an elite course at the same first surgery department. Kayo asks her mentor, First Surgery Professor Hida Kiichiro, to agree to her marriage with Katano, but is refused. In fact, Hida had always had feelings for Kayo...