Artist.
Japanese name: おおじ (Ooji)
The other names: 山家 大右衛門 (Yamaya Oouemon), "ottamage", おおおじ (Oooji) and various joke names
Circle name: 大仕掛け (Oojikake)
https://www.pixiv.net/users/276923
https://www.pixiv.net/stacc/oowemon_yamaya
https://twitter.com/oowemon_yamaya
https://twitter.com/intent/user?user_id=126863821
https://fantia.jp/oowemon_yamaya
https://seiga.nicovideo.jp/user/illust/137846
http://com.nicovideo.jp/community/co84761
https://www.nicovideo.jp/user/137846
https://pawoo.net/@oowemon_yamaya
https://pawoo.net/web/accounts/40435
https://oowemon-yamaya.fanbox.cc
https://www.pixiv.net/fanbox/creator/276923
https://sketch.pixiv.net/@oowemon_yamaya
https://monappy.jp/u/oowemon_yamaya1
http://www.ustream.tv/user/oojikake
https://www.pixiv.net/stacc/zyutu
http://ooji02.blog.fc2.com
http://p.twipple.jp/user/oowemon_yamaya
http://twitpic.com/photos/oji_02
http://twitpic.com/photos/oojikake
http://twitpic.com/photos/oowemon_yamaya
