The protagonist is in the medical major. Under the threat of his father, he goes to an all-girls high school and spent a month there as a doctor at the health department. Of course, a male doctor in an all-girls school is pretty odd and rare. Basically, during his month of stay, he will meet a total of 5 girls, each having their own personality and problems/troubles in love. So, as a school doctor, he has to somehow tries to heal their hearts and make them feel happy.

(Source: Anime Densetsu, edited)