Damn, if it werent for the tags, i'd say this was Hatsune Miku.

Looks like Yuuko from xxxHolic.

Why is she smoking cotton candy?

masasa said:
Why is she smoking cotton candy?

Cotton candy must taste good smoked.

I'm wondering where this 'cirno's' wings are.

fairy_wars tag why?

Excuse me while I develop the Japanese ability to inexplicably explode blood out of my nose.

krko said:
fairy_wars tag why?

Because someone's a retard. There's nothing in this image, nor in the tags and artist's commentary on pixiv, that indicates this image has anything to do with Fairy Wars.
Tag removed.

Lord_Enki said:
Cotton candy must taste good smoked.

I'm wondering where this 'cirno's' wings are.

Who says this Cirno is still a fairy? Shikieiki even said Cirno could become a youkai one day.