Artist. Best known for his webcomic series, "Taitou JK.":http://www.pixiv.net/member_illust.php?id=2385766&tag=%E3%82%BF%E3%82%A4%E3%83%88%E3%82%A6%E3%82%B8%E3%82%A7%E3%82%A4%E3%82%B1%E3%82%A4

Artist name: Batta
Old name: 佐山 直川 (Sayama Naokawa)
Circle & site name: かんづめクオリティ (Canzume Quality or Kanzume Quality)
batta (kanzume quality)