Artist, mangaka. The author of Kuroneko no Ekichou-san.
Japanese name: 山口 悠 (Yamaguchi Yuu)
Old name: ヤマグチ タカシ (Yamaguchi Takashi)
Circle & site name: ClearBook
Adult page name: NuclearBook
https://www.pixiv.net/users/138256
https://www.pixiv.net/users/66721014
https://www.pixiv.net/stacc/takasiv5
https://www.pixiv.net/stacc/user_fgft3873
https://twitter.com/Y2_CB
https://twitter.com/Yu_Tanigaki
https://twitter.com/intent/user?user_id=77706400
https://twitter.com/intent/user?user_id=1476036303066374144
https://seiga.nicovideo.jp/manga/list?user_id=2676626
https://seiga.nicovideo.jp/user/illust/2676626
https://www.nicovideo.jp/user/2676626
https://nijie.info/members.php?id=1082497
https://clearbook.fanbox.cc
https://yu-tanigaki.fanbox.cc
https://www.pixiv.net/fanbox/creator/138256
https://www.pixiv.net/fanbox/creator/66721014
https://sketch.pixiv.net/@takasiv5
https://skeb.jp/@Y2_CB
https://www.tinami.com/creator/profile/24979
http://www.mangaupdates.com/authors.html?id=19842
https://www.deviantart.com/clearbook
http://c10023107.circle.ms/oc/CircleProfile.aspx
http://c10037389.circle.ms/oc/CircleProfile.aspx
http://twitpic.com/photos/ty_cb
