Jin and Akitaka hit it off as coworkers at the same company they joined after graduating. Ten years have passed since they started living together to save money on rent, and now they are spending time together like a family, but "a change" comes over them...? A step-up live-in love story between a friendly guy who's like a junior and a cool guy with covered eyes, by Tsunechika Obata, a master of romantic comedies.