歌岛千草（仲里依纱 饰）和久野悠斗（林遣都 饰）是青梅竹马的好友，两人常常在一起玩，彼此之间感情十分要好。长大之后，千草和悠斗进入了同一所高中同一个班级就读，因为家庭遭到了变故而一直闷闷不乐的悠斗，将开朗乐观的小千视作是内心的唯一支撑，聚在一起分享小千带来的便当成为了悠斗一天当中最愉快的时光。
悠斗加入了弓道部，在那里结识了校花武藤白（高桥由真 饰），与此同时千草则加入了超自然现象研究会。一次偶然中，千草得到了记载了校园七怪谈的笔记本，笔记上记载，亲身经历了六大不思议事件的人才能够看到可以实现愿望的听愿樱，于是，千草带着悠斗，开始了寻找起了校园不思议事件。

Kazuki Suzumoto is divorced and he lives with his 15-year-old son Kouki. Kouki is in a susceptible time. The father feels guilty about his son. Kouki then fails his high school entrance exam. In the spring of the following year, Kouki barely passes his high school entrance exam. Kouki mentions to Kazuki that he likes his father's lunch box. The father and son make a promise to each other. Kazuki promises that he will make a lunch box everyday for Kouki. Kouki promises that he will never skip school.