不機嫌彼氏のなだめ方

Kagami Yuujin is in intimate relationship with his servant Takamizawa Ei. Will this bring them love and happiness or will the pressures of Kagami's responsibilities as Leopard Clan Leader get in the way of this pair? Following the storyline from Kuroneko Kareshi No Itoshikata from Kagami's brother's point of view.