Tsuma, Shougakusei ni Naru.

A man devastated by the death of his wife a decade earlier is visited by a young elementary school student who claims to be her reincarnation. After the woman's passing in a traffic accident, he struggles with grief until this unexpected encounter offers a new perspective. Their family dynamic shifts as he adjusts to life with this version of his wife, now a child. The story explores their evolving relationship as they navigate this unusual situation together.