Gakupo is an rich aristocrat in the 1700s with purple hair and sapphire eyes, he may seem regal, refined, kind and gentle on the outside but he actually has a secret, that secret being he had kept his ‘lover’ in chains in his own dark basement, keeping her in a human bird-cage in chains. He is lustful, Masochistic, possessive and manipulative, he displays an extreme violent and psychotic, level of love and care to Mitsuko. He will kill/hurt anyone if wanted to including Mitsuko who he marked.