Touhou Project: Hakurei Reimu 02

Touhou Project: Hakurei Reimu 02

Often teased by fans because of the way she's dressed, Reimu's main abilities include flying in the sky, good intuition, and getting along with everyone, even those who were once her enemies. She is characterized in the games by her homing amulets and yin-yang orbs. She is also featured in the games wherein ZUN is involved, notably Seihou: Shuushou Gyoku as one of the Extra Bosses and in Graffiti Kingdom as "Flying Maiden".
Cute cosplayer from Winter Comiket 2009! It appears I have more in my inbox then I originally thought. Thanks to SnooPeas for the photo!