17-year old Masato, who was kidnapped as an infant and returned to his parents after 40 days. Masato's father is a dentist and he seem to have everything that he needs. However, Masatos life is a constant battle in a loveless relationship with his mother. To help himself cope, Masato comes to believe that the woman who kidnapped him 17 years ago is his real mother and embarks on a journey to find her...His journey brings him to Okinawa where he is reunited with Aiko - his real mother, who is running a small restaurant on the beach. Without revealing his past, Masato moves in as a part-time helper. Aiko is guarded and unwilling to open herself up to Masato, but eventually, his hard work and persistent efforts to win her favor begin to break down the barriers.