Dreaming Sagiri and Summer Fireworks.Masamune finds Sagiri in a yukata, and deduces that she wants to see the fireworks but doesn't want to leave her room either. He invites Elf, Muramasa, and the 3rd place author of the competition, Kunimitsu Shidō, for an after-party at his house. After the party, the three authors go out to watch the fireworks, but Masamune chooses to stay with Sagiri in her room as they watch it from her room instead.