"Um, I don't mean this in any kind of insulting way," he prefaces, chewing the inside of his cheek as he continues to mentally fret. "Since you're all sort of... I don't know, I guess since there's not really a collective, agreed upon kind of vampire society... is there some sort of hierarchy I should know about? I mean, you know like 'this person over here is an elder so he gets to be treated with more deference' sort of thing? And how would you know since it's not like you... we age or anything?"

He's so worried about making a faux pas and causing Yesung any embarrassment.