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Manami's mother died when she was a child. She moves to Okinawa, where her ailing aunt lives and she feels connected with her mother. Manami has always lacked self-confidence, but she becomes more positive after meeting Koa, a Vietnamese researcher following his dreams. But then Koa returns to Vietnam.
Seiji is a third generation "Gosei kai" gang member. He works to build up the group's strength. Meanwhile, a journalist investigates a case that occurred 19 years ago. He meets Hayato, Daisuke and Asami.
