Artist.
Japanese name: 闘志力 (トウシリョク, Toushi-Ryoku)
The other names: 闘志 (Toushi), 透視力 (ToushiRyoku) or とうよん☆ろっく (Tou4 Lock or TouYon Lock)
Circle & site name: 闘志力研究所 (Toushi-Ryoku Kenkyuujo)
https://www.pixiv.net/users/7775
https://www.pixiv.net/stacc/tou4lock
https://twitter.com/tou4lock
https://twitter.com/intent/user?user_id=57623037
https://pawoo.net/@tou4lock
https://pawoo.net/web/accounts/14212
https://sketch.pixiv.net/@tou4lock
http://www.stickam.jp/profile/tou4lock
http://c10061158.circle.ms/oc/CircleProfile.aspx
http://c10216722.circle.ms/oc/CircleProfile.aspx
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG03108.html
http://www.melonbooks.com/index.php?main_page=maker_info&makers_id=MK0000000777
http://black.sakura.ne.jp/~tou4/html/index.htm
http://tou4.b.dlsite.net
http://theinterviews.jp/tou4lock
http://twitpic.com/photos/tou4lock
