The joys and sorrows of the little schoolboy, Akira, in a modern Japan. A story about friendship and loyalty.

Mari lives a comfortable life as a single woman. She has a nice job at a company and resides in an apartment in the suburbs of Tokyo. A couple lives next to door to her. Mari can hear them argue or making happy conversations everyday. One night, when Mari comes back home, she sees her next door neighbor sitting in front of his door and shivering from the cold. He locked himself out.

Yuriko, once a concert pianist, now practices home-making while husband Takashi stays out late with co-workers, leaving her to decay into severe mental illness.

Noushin is a single mother who lives by her girl alone and has a peaceful life but when a foreign guy enters their life everything changes for them and new secrets reveal.