Megu is a "leftover woman" who's careless in both work and in romance. She had a lot of fun living together with her friends in a shared house, but one by one, they all started dating someone and moved away to live as couples! Megu and an extremely busy businessman named Takaomi are the only ones left. Wait, does this mean she's going to be living alone with Takaomi from now on? What will happen during the mornings and nights this man and woman in their late twenties spend alone together in the shared house?!!