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.
柯南、灰原及少年侦探队成员步美、光彦、元太随博士这日露营完毕，绕道参观西多摩市新建于富士山前的日本第一双塔摩天大楼，毛利小五郎恰也应双塔所有者、他的学妹常盘美绪之邀，携小兰、园子参加开幕典礼。
这是一个对小雪来说太过沉重的现实——渴望幸存者、活跃在黑暗中的神秘组织和隐藏的阴谋。拓爷和小雪，原本是陌生人，随着他们的旅行，他们的关系逐渐加深，并接近了消灭城市的奥秘。
