Artist. Formerly, mistakenly tagged as kushima_sora.
Japanese name: 九島 空 (reading is given as Kushima Kuu)
Solo circle name: karakan
Joint circle names: 小鳥遊缶, 笑油戦士の尻尾 or *かのん*
Site name: 空缶 (karakan)
https://twitter.com/kushima09
https://twitter.com/intent/user?user_id=294309338
https://www.pixiv.net/users/980841
https://www.pixiv.net/stacc/kushimakuu
http://twitpic.com/photos/kushima09