Artist. Formerly tagged as bikun.
Nickname: りく (Riku)
Pixiv nickname: ЯK
Old name: リク (Riku)
https://www.pixiv.net/users/5993045
https://www.pixiv.net/stacc/riku00721
https://twitter.com/Riku0021
https://twitter.com/riku00721
https://twitter.com/intent/user?user_id=534043102
https://twitter.com/intent/user?user_id=2263828013
https://nijie.info/members.php?id=3493
https://pawoo.net/@riku00721
https://pawoo.net/web/accounts/172554
https://sketch.pixiv.net/@riku00721
https://www.pixiv.net/users/1375034
https://www.pixiv.net/stacc/bikun
https://www.pixiv.net/stacc/gaga-gaga
http://yfrog.com/user/riku0021/photos
