Well, let's be frank, the only "normal" person in the series is Kodaka.

Other than that, we have :
A cruel,manipulating Yozora (Sora) that does not seem to enjoy telling Kodaka about being his childhood friend until like the end of the third Volume.And she has manipulated probably almost all of the other characters.
A rich spoilt ojou-sama that secretly likes embarrassing nicknames, Niku(Meat)
A fujoshi that likes BL and calls herself in a third person, Rika a very perverted pervert.(Not that I mind, but society....)
Yukimura, the reverse trap, trap.
Some 10 year old teacher Maria that thinks she knows about "secks" and always get bullied by Yozora.
Hot brocon loli-sister that likes to call herself some vampire .
What's not to like this awesome series ?
