Ichijou stumbles upon an old lunchbox during a visit to his grandma's house, triggering a flood of memories from his high school days.

Ryu-san and Mahiro join Ichijou at his grandmother's house for Taiwanese hotpot. Amidst the warmth of the meal, Ryu-san opens up about a past love that holds a special place in his heart.

When Mahiro learns that Ichijou wants to make sure of his feelings by kissing him, the former gets sad and angry.