学习成绩优异的水谷雫（土屋太凤 饰）性格冷淡，不愿与周围的人打交道。这一天，她被老师委派去给一位许久不曾来校的男生送作业。那个男生名叫吉田春（菅田将晖 饰），开学第一天就因为打架斗殴而被停课，但是处分解除后也迟迟不见他来学校。见了面才发现，传说中凶神恶煞一般的吉田其实是个十分单纯的大男孩，他会因为别人对他的好而欣喜非常。出于对小雫的信任，吉田终于回到学校。在此期间，夏目朝子（池田エライザ 饰）、山口贤二（山田裕贵 饰）等性格各异的青春男女也相继聚到他们身边。男孩女孩的青春注定不留白…… 　　本片根据ろびこ的同名漫画改编。Haru Yoshida is a high school student. He is viewed as a problem child with an unpredictable behavior. He also doesn't have any friends. Shizuku Mizutani is a high school student who studies too much. She is cold and doesn't have any friends. Haru Yoshida and Shizuku Mizutani sit next to each other in a classroom. A small thing causes Haru Yoshida to have feelings for Shizuku Mizutani. He confesses to her about how he feels.