にびさびの巣.

Haruto, who lives in Tokyo, couldn't hide his confusion about the changes in people, the city, and the time since his grandmother's death. One day, his older sister Akane, who lives locally, contacts her to demolish her grandmother's house. And in the contents was written a will from her grandmother. Places that she thought would never change, things she believed would never change, memories that were ingrained in her home, and her sister's lies... The swallow that left the nest is still a child, looking for a place to return.