Bent on revenge, a traumatized ex-police officer must infiltrate a yakuza organization by befriending one of the group's most unhinged members.

Set in a provincial city that has been quarantined to prevent the spread of infection after a zombie outbreak, this human drama depicts the new daily life of a high school girl who remains in the quarantine area to take care of her family who have become zombies. (machine translation)

A lake sits beside a quiet town in the mountains. There is a new, big bridge scheduled to open. Yumi feels trapped in her routined life with her husband, after Yo, her daughter, married and moved out. Kazuko, Yumi's mother begins to sort her things as she senses her time is coming. Meanwhile, Yo is frustrated as she starts to recieve less job offers, struggling to cope with the reality against her expectations. The family will take the lead in the bridge's crossing ceremony with their secrets hidden deep within.

Keiko, an AI robot who has been living with the Koyama family educating their daughter Airi, is experiencing an increase in operational mistakes. Airi’s mother plans to replace Keiko with an upgraded version, but Airi refuses.