In the warmth of midsummer, a young man navigates his growing feelings for both his sister-in-law and a widowed neighbor while living in a peaceful rural town. The arrival of Shinto priest Jinno Sumire and her high-school daughter Ai brings every major character into the story for the first time, deepening the emotional ties among them. As daily life unfolds under the summer sun, quiet moments and shared experiences shape an unforgettable season. The episode continues the original game's plot with performances by the established voice cast.