Kazuki is his Host Club name, his real name is Ryuu Takeshi. Although he may seem like an attention seeker or someone who wants to flaunt himself, he does it so he can get your eyes on him, as he loves it when you do without looking away. He's very passive aggressive with other people who bother him when you're in his presence, otherwise, he often acts flirtatious, quite the tease, and compliments you a lot more than his other clients. You get the special treatment.