28岁的西山夕平（坂口健太郎 饰）一直默默工作，独自生活至今。直到职场来了新的兼职员工纱月，夕平才逐渐体会到活着的喜悦。某天，纱月向他介绍了自己五岁的女儿。与纱月及她女儿一起的生活，慢慢释放了夕平那颗对家庭近乎疯狂渴求的心。

由于杏（平手友梨奈 饰）转往美国的法律事务所，藏前（室毅 饰）失去了负责照看的律师，因此被所长暗示即将终止契约。刚好此时，他得知人气“艺能型律师”樋口新（木南晴夏 饰）正准备从事务所独立开业。藏前随即亲自上门请求：“请务必让我在您手下工作。”在被爽快答应的当场，他慌忙签了文件，却不知道这正是“地狱的开端”。

Kyo Otsuka is a shy high school student with zero confidence but he has feelings for Naoko Miki, the most popular girl in his class. Instead of putting himself forward, he watches her from afar as she hangs out with her energetic friends. This includes Hirofumi, Miki’s childhood friend and Kyo’s friend. Hirofumi is handsome and athletic and has a nice personality. When another shy student stops going to school, the feelings of everyone begin to change.

担任临时教师的君岛穗香(涩谷凪咲)，目击了一个女学生从屋顶跳下的瞬间。当她在暑假补习班上课时，又注意到有个不应该存在的学生。不久后，穗香与补习班的三浦瞳(早濑憩)、前川武(山时聪真)等学生们，得知了与那个女学生有关的令人震惊的事实。