A young woman returns to her birthplace for an ex-classmate's funeral. She and a friend lose themselves in melancholy.

Saeko and Yukako live together in a small apartment complex in Tokyo. After the Tohoku earthquake in 2011, both live in a state of unease. Saeko, who is in a divorce, is worried that her daughter is exposed to radiation. Yukako is also afraid of radiation and tries to convince her husband to move. The two become friends after Yukako tries to save Saeko after a suicide attempt.