Artist. Formerly tagged as isao higashiyama.
Japanese name: 東山 勇人 (Higashiyahma Hayato) , ガス山
Circle: 狂人
https://www.pixiv.net/users/14424
https://www.pixiv.net/stacc/asmira0427
https://twitter.com/gass_mountain
https://twitter.com/intent/user?user_id=91408430
https://sketch.pixiv.net/@asmira0427
http://ava-gass.sakura.ne.jp
http://hwg.sakura.ne.jp/sblo_files/hwg-ma/image/
http://www.geocities.jp/hayato_higashiyama/
http://twitpic.com/photos/gass_mountain
http://yfrog.com/user/gass_mountain/photos
