在这部爱的小历史剧情/爱情片中,东京一隅，从事食品配送服务的执行夏希（中村映里子 饰）独自过活。这一天，名叫敷谷壮（池松壮亮 饰）的男生意外造访，她由此得知了关于父亲大悟（光石研 饰）的消息。早些年，大悟抛弃了妻子和夏希离家出走，因此在这个女孩中父亲俨然是一个令人憎恶的存在。可当父亲的形象毫无防备浮现脑海之时，她还是决定启程去探望那个男人。
在东京的另一个角落，靠放高利贷为生的夏生（冲渡崇史 饰）浑浑噩噩，他无意间想起了久未谋面的妹妹（高桥爱实 饰），怎奈妹妹对于这个当初抛弃了家人的哥哥极度抵触，只是兄妹俩的那份情感血缘却割舍不断。
In a corner of Tokyo, a man named Natsuo lives as a yakuza and a woman named Natsuki works part-time. Although they rarely think about their families, they attempt to reunite with them. Brother and sister, father and daughter; the distance between them begins to shrink, but... This film portrays the dynamics of people trying to co-exist in nature and in the city. Even though two individuals may be insignificant in the context of a large society, one life meets another and they move forward. This is a movie about their small footsteps.
爱的小历史。
