The cute and innocent high school boy Cyan ends up living alone in his house with his handsome live-in housekeeper, Haguro, after his parents relocate for work. What begins as a relationship where Cyan is simply spoiled and cared for soon turns into a new, naughty, and heart-pounding daily life for the two of them.
Elsewhere, Cyan's well-mannered and model classmate, Natsume, ends up with his teacher, Mr. Sakuma, acting as his guardian when Natsume struggles to take care of himself. These two high school boys find themselves drawn into unstoppable romances with the adults who look after them.
