对方的名字叫海江天纯（丰川义喜饰演），自称是小岛大学的哲学教授。此前，他一直在和水泉的祖母一起学习印染技术。他拥有那所老房子的钥匙，根本不打算离开。海江天性格直率，毒舌的性格让画眉美人难以忍受。他甚至到处都在说要娶画眉美女。但在混乱的相处过程中，他们之间的距离似乎悄悄地缩短了。。。这部电影改编自Xi的同名漫画。
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.
