Mr. Bride Vol. 4 (Kodansha, 2021)

At 26 years old, Hayami is four years into her career as a saleswoman. She's an ace when it comes to her work, but at home she becomes a massive slob. It just so happens that Yamamoto-kun, her junior who carries a bit of a torch for her, is a pro at housework! Hayami takes him in as her wife, and their life as housemates begins. But lately, they're becoming impatient with their fruitless efforts to close the distance between them. To make matters worse, Yamamoto-kun's coworker, Akamine-chan, and Koga-san, a co-worker from Kyushu, have entered the scene. What waves will they cause?!