空とあるゅう先生
[[Ukagaka]] ghost.

Ghost developer: [[Mishiro Haruka]]
First side: 蒼井 空 ([[Aoi Sora (ukagaka)]]) - [[single_wing|Single-winged]] [[angel]] pupil enrolled in the "Wings' Garden" angel school
Second side: あるゅう先生 ([[Aruyuu]]-Sensei) - Sora's [[teacher]]. Prefers demerit system.
Other side: 蒼井 羽根 ([[Aoi Tsubasa]]) - Sora's little sister, a librarian.
Favorite subject: Sora's daily bungles, "Cladosiphon okamuranus":http://en.wikipedia.org/wiki/Cladosiphon_okamuranus 
Download site: http://himaoka.sakura.ne.jp/nanika.htm

aoi sora (ukagaka)