从山间的城镇到东京，然后到富冈的无路之旅的轨迹。父亲去世，失去了生存场所的青年时代，遇到了从设施里逃出来的患有智障的少女月子。太奇甩开追来的人们，决定把月子送到她的父母身边。但是，知道的只有她的出生地是“能听到海的声音的地方”。在鸟的声音的引导下，月子和泰奇开始了两个人的旅程…

Taichi's father is the only family he has, but his father commits suicide by hanging. People suspect Taichi might have killed his father. Because of this, Taichi loses his job and he also loses his place. On the day his father is cremated, Taichi meets Tsukiko who is mentally handicapped. Tsukiko has run away from a facility.