Ryuunosuke Kurosaki

Age: 17
Height: 183 cm
Weight: 60 kg
Blood type: O
Class: 2-5
Specialize in: Sewing
Loves: Anything ecchi
Voiced by: Nakamura Yuuichi (Drama CD)

Ryuunosuke Kurosaki is the third member of the "idiot trio" who frequent Cafe Maid Latte, nicknamed "Kurotatsu". He is known for being perverted and liking erotic things. He also used to be a delinquent in middle school with Shiroyan.

(Source: Wikipedia, edited)