Artist known for his comics, which have a particular sense of humor. Might be Yamauchi Yasunobu, the creator of Danshi Koukousei no Nichijou, as per forum #47985.

Also the creator of the "I'm surrounded by raging lesbians!" meme

Japanese name: ボンバーグレープ (Bomber Grape)
Circle name: ハイパーサマーウォーズ (Hyper Summer Wars)

See also

• Pixiv account: http://www.pixiv.net/member.php?id=279051
• Twitter account: https://twitter.com/bombergrape