OL Haruka (Yuri Maina) has a crush on her colleague Ijuuin Kanade (Hiroshi Nagase). Just as she moves to a new home due to her mother's remarriage, she is greeted by the object of her affection, Kanade!? Living under the same roof should be happiness... but what awaits her is a dangerous cohabitation with his brothers!! The ending changes based on your actions during that time. Days with the brothers—who will you choose in the end?
