Toshihito Kokubo

Yuna lives on a remote island in Okinawa, 360 kilometres from the mainland. There is no high school on the island, which means that every teenager must leave in the spring of the year they turn 15 to attend school on the mainland. It is Yuna's turn to leave this year, and as leader of her school's traditional musical group, she is preparing to sing the customary farewell song expressing gratitude to the island and her family. (japanesefilmfestival.net)

When friends graduate from junior high school and are enrolled in high school Koichi and Yakko join a motorcycle gang. They make new friends, have fights, and flirt with girls. Yakko, however, is not having an easy time of it. Koichi stands up for his friend and joins the yakuza, which brings its own problems with it.

Five siblings live together. They have arguments everyday and sometimes even fight with each other. Each of the siblings have their own problems like studying, finding a job, marriage, etc. There are also people connected with the siblings who either yearn for them or are their romantic interests.