Japanese: 佐々上りっか(ササガミリッカ)
Pixiv: http://www.pixiv.net/member.php?id=182237
Website: http://rikkapic.web.fc2.com/
Stickam: http://www.stickam.jp/profile/rikkapic
https://www.pixiv.net/users/182237
https://www.pixiv.net/stacc/r-a_rikka
https://twitter.com/rikkapic
https://twitter.com/intent/user?user_id=19435172
https://kp3c99h1.fanbox.cc
https://sketch.pixiv.net/@r-a_rikka
https://www.tinami.com/creator/profile/1777
http://raspberrycandy41033.web.fc2.com
http://rikkapic.web.fc2.com
http://www.stickam.jp/profile/rikkapic
https://store.line.me/themeshop/product/49b213d3-602a-4d32-9434-ec523e654f6f/ja
http://twitpic.com/photos/rikkapic