Mata Ashita Aeru yo

The next day after a day of drinking alone, Kimura woke up in an unfamiliar house. The owner of the house, Kunishima, is said to be the one who took care of Kimura when he collapsed in a drunken stupor. He tries to leave immediately, but the calmness of Kunishima and the warm atmosphere of the house puts his mind at ease... This is a clumsy and endearing love story of adults, spun by a gentle and simple researcher and a serious and sensitive salesman.

(Source: Home-sha, translated)