After entering high school, Rikuto, the future head of the Ayamejou-Kouji family, begins living alone in a penthouse apartment at the top of a luxury tower. However, his new life takes an unexpected turn when Kanna, a maid with a knack for eccentric behavior and conversations, arrives. With every action and word of Kanna's being packed with weirdness, Rikuto can't stop reacting and retorting.
