One Night - S1.E9

Miyabi and Aoi have to leave for a day to take care of family business leaving Kaoru in charge of the house. The other two male members of the photo club come by and nab Taeko for some cos-play photos. This leaves Tina and Kaoru alone for the night. A storm comes along and knocks out the power causing Tina to insist on being alowed to spend the night with Kaoru.

Surviving the night, the next evening, Tina and Kaoru start drinking and Tina trashes the place. Miyabi and Aoi return and Miyabi is ticked about the mess and forces Kaoru to clean it up while the culprit Tina gets taken to bed.