In order to help her father, Chiwa Takanashi agrees to an arranged marriage with the company president, Hokuto Mamiya—a man she doesn’t know—at the request of Hokuto’s grandfather. Chiwa believes the arrangement isn’t binding, but her new partner seems to think otherwise. Can two strangers living together find their way to a happy marriage?! Hokuto resigns from Mamiya Commerce and takes on a failing company, risking everything to become heir in one year. Chiwa and Hokuto are closer than ever, so why is he saying they can’t be a true married couple?