On a rainy night, Aya, a married woman, checks into a guesthouse she had booked. Suddenly, Tatsuya, a company employee on a business trip who had booked the same room, shows up, resulting in a double booking. Unable to contact the management company, the two strangers find themselves spending the night under the same roof. Awkward small talk, awkward conversation while eating convenience store meals. Slowly, only their mutual loneliness becomes apparent...