At 27 years old, Hayami is "the perfect sempai," 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! Smitten with his domestic prowess, Hayami takes him in as her wife. Over time, they've gone from being housemates to boyfriend and girlfriend. But their relationship is tested when a new co-worker, Hanazuma-kun, enters the scene! Hanazuma-kun is determined to get closer to Hayami, and his tenacity only fans the flames of Yamamoto-kun's jealousy. In volume 8 of this hilarious housemate rom-com, our heroes navigate Yamamoto-kun's second birthday since moving in together, a love triangle, a reconciliation, and a hot spring vacation. You won't want to miss it!