A period of boredom that came after four years of marriage. Her wife, Ami, who spends her lonely daytime, taught her neighbor's Ronin student, Uchimura, three times a week to study. Ami just wants to support Uchimura as she works hard to achieve her dream, but her kindness ignites Uchimura's desires. And Ami puts on lipstick for the first time in a while to go to her class reunion... On the way back, she bumps into Uchimura in the hallway of her apartment and accidentally touches her lips. Since then, Uchimura's desire continues to accelerate in the early afternoon when her husband is not there.
