Criminal Lawyer, Toru Oikawa, has just moved back to Japan after spending years in Argentina, after being left in the will for a house he had no idea about. The catch? He has to share it with Detective Issei Matsukawa, his annoying roommate, with his big muscles and kissable mouth.. But his Aunt was Toru's favourite mentor, and he wasn't about to give this house up. The problem is, living with someone means getting to know them. And the more Toru finds out about Issei, the harder it is to loathe him...and the easier it is to love him. A story based on the book 'Under one roof' by Ali Hazelwood.