Doctor Kouta Sezaki works on a clinic ship, which sails around the Seto Inland Sea. He's talented as a doctor, but possesses a weakness to fall easily in love with women. When he lands at an island, Kouta falls in love with a woman from that island. He tries to solve a medical problem which that woman has and makes other people get involved in her situation. Nevertheless, Doctor Kouta Sezaki is rejected by that woman and, with tearing eyes, moves on to the next island.