Artist, mangaka. The author of [[O/A]].
Also known as “Watarai with a reputation for his [[after sex]] art” "(事後に定評のあるわたらい).":http://dic.pixiv.net/a/%E4%BA%8B%E5%BE%8C%E3%81%AB%E5%AE%9A%E8%A9%95%E3%81%AE%E3%81%82%E3%82%8B%E3%82%8F%E3%81%9F%E3%82%89%E3%81%84 

Pen-name as a mangaka: 渡会 けいじ (Watarai Keiji)
Doujin & pixiv nickname: わたらい (Watarai)
Circle name: 御茶ノ水木人会 (Ochanomizu Mokujin-kai) (the other member: "Yamamura Hitsuji)":/artists/24653 
Site name: Upper Ground

h4.See also

* Blog: http://kgw-gutundbose.mo-blog.jp/
* Pixiv account: http://www.pixiv.net/member.php?id=6086
* Drawr account (empty): http://drawr.net/upperground
* Twitter account: http://twitter.com/watarai
* Twitpic account: http://twitpic.com/photos/watarai
* Wikipedia article (JP): "http://ja.wikipedia.org/wiki/渡会けいじ":http://ja.wikipedia.org/wiki/%E6%B8%A1%E4%BC%9A%E3%81%91%E3%81%84%E3%81%98 
* Baka-Updates Manga: http://www.mangaupdates.com/authors.html?id=9222
watarai keiji