Sue, Cheryl, and Lexi are best friends. They do special things on their birthdays every year because they were all born on the same day. It's their 18th birthday now, and they're starting to lose their virginity.
一场大火烧毁了初中生南云隆（山田美玲配音）赖以生存的公寓。此外，父亲不见踪影，一贫如洗的南云在茫茫城市中漫无目的地游荡，最终昏倒在街头。幸运的是，南云得到了一名女大学生和志敏儿（高桥智秋配音）的帮助。
