Machi Onodera, a 27-year-old teacher, is focused on finding a perfect match for marriage. Her world is upended when Yuto, the younger brother of her high school first love Yuichi, transfers to her class, resembling Yuichi in his youth. Torn between the charming Yuto and a chance reunion with Yuichi, Machi navigates a thrilling love triangle, caught between passion and nostalgia.
Based on the novel of the same name by Jirō Asada. Three adult children visit their mother living in the countryside, each at separate times, but things aren't really what they seem to be.