[Judging by the lack of his reaction: no, he doesn't know what a Count is. It sounds like a strangely foreign name, just like everyone else's. How convenient.]

Jae-Ha. Since we get along so well [by which he means he likes this guy's clothes, he's pretty, and he can put up with his rudeness...] I thought it only made sense to officially introduce ourselves. Nice to meet you, Count D.