JUR-353 A married woman who received a spare key was impregnated in her apartment until the male student graduated. Hoshimiya Ikka

Yuuzen, who lives alone, one day meets a married woman named Kazuka at a nearby izakaya. She is at her wits' end due to a fight with her husband and ends up drinking together with him. From that point on, they become close, and eventually start having a physical relationship. Yuuzen gives Kazuka the key to his house, and she starts going to his place carrying shopping bags whenever her husband goes to work. They spend intense time together in his room to distract themselves from the loneliness of their missed encounters...