After a decade apart, Shoma returns to the countryside home upon news of his grandfather's passing. There he reunites with twin sisters Chisato and Kuu, now grown into composed adults whose presence stirs memories of their shared childhood under the same roof. As they sort through the quiet house and lingering emotions, Shoma reflects on the paths each has taken since those early years of loss and friendship. The encounter brings a gentle sense of closure and renewed connection among the three.