Season 1 - Shuudengo, Capsule Hotel de, Joushi ni Binetsu Tsutawaru Yoru.

Minori, an office worker, and her boss Hadano, are constantly arguing with each other. One night, after a company drinking party, Minori and Hatano are having their usual argument, when Minori realizes that she has missed the last train. They decide to spend the night at a nearby capsule hotel, but an incident forces them to share the same unit.