Kokoa Shuzen (朱染 心愛, "Shuzen Kokoa") Introduced in the second manga serialization and anime adaptation, Kokoa Shuzen is the younger half-sister of Moka Akashiya. Bearing a similar appearance to Moka, except for her Flameing orange red hair (though it is stated she dyes her hair this colour) and green eyes, she arrives as a first-year student to Yōkai Academy. Like her sister, Kokoa is also a vampire, but her powers are not sealed and does not carry the same supernatural strength Moka possesses, supposedley because she was still young. To compensate, she has a pet bat, Kou (Nazo Koumori in the anime), that can transform into a variety of weapons and wields it with enough strength to make herself formidable. Kokoa despises Moka for sealing away her inner personality, whom she adores and loves. Before Moka left to study at the academy and prior to her receiving the rosario, the sisters often clashed with one another, although Kokoa could never defeat Moka in a duel. She constantly attacks Moka, in hopes of drawing out the "inner Moka" and feels slightly angry that Tsukune has the ability to unlock Moka's true nature and begrudgingly accepts the presence of her sealed sister. Unlike Moka, Kokoa harbors a deep-seated fear of their older sister Kahlua Shuzen: known as the kindest amongst their family, Kahlua continuously babies Kokoa and has a "smile of an angel", something Kokoa is frightened of. Kokoa has said she is also scared of Shizuka Nekonome. She's also scared to death of Akuha Shuzen.