A single living room where a wife who received the key was sent out until the graduation of a male student. tree lined up.

One day, Saji, a university student living alone, meets her housewife Aina at a nearby izakaya. Then the two who happened to meet each other met in a casual meeting and decided to drink until morning at Saji's home. The students and the wives were unacceptable, but their relationship deepened. After Saji gave him the key, Aina started to go to Saji's house with a shopping bag in one hand when her husband came to work. And I spent a lot of time in such a way as to confuse the loneliness that my husband would not be able to deal with.