Ouka

凰花

Ouka is a career werewolf and a fearsome fighter. She first encounters Shugo and Rena at a special cherry blossom festival, having come to see them and Mireille. Shugo feels an instant attraction to her, particularly in her wolf form, as he "loves puppies." Ouka is more than happy to reciprocate Shugo's affections. Like Shugo, it remains unclear how far she truly intends to take this interaction, although Ouka seems to exploit it to the fullest. As a character, Ouka possesses two alternate forms: a white wolf capable of using human languages, and a tall, pale, voluptuous human appearing to be 20 years old, with wolf ears. In real life, she is an extremely nerdy-looking student who works part-time as Mireille's tutor. Her class type is Werewolf, a result of The World expansion pack available to very strong players. Ouka's sole interest is challenge; she is constantly seeking "a worthy foe." This has led to suspicions that if Shugo met his sister's expectations of heroism, Ouka would consider him such a foe and kill him.
The second volume of A.I. Buster mistranslates her name as Orca in the English version.