Matsui Yuusaku, a medical college student, receives a letter from his uncle, once a famous doctor in Tokyo who now manages a hospital in a small village, with an invitation to visit him and assist with the hospital work diring summer vacation. Yuusaku hopes that this work will help him to understand why he has chosen to be a doctor, so he decides to accept this offer.

One more thing spurs this decision, as he is looking forward to the upcoming reunion with his cousin, Ibuki, whom he has not seen for many years.