Tenma hosts a study session at her house, but when Mikoto and Akira are late, she and Eri begin without them. In an unexpected moment, Tenma tells Eri that Harima might have feelings for Mikoto. Still flustered from her beachside run-in with Harima, Eri can't hide her reaction...

The tea ceremony club's summer retreat takes the group deep into the mountains—and right behind them are Harima, Imadori, and Hanai. When Yakumo realizes Harima was the one who saved her cat, she joins him for firewood duty. But Tenma catches them alone and misreads the situation—again.