URLs

• https://www.pixiv.net/users/13289878
• https://www.pixiv.net/stacc/oka_kakao
• http://0kaka.web.fc2.com
• http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/rg09820.html/
• http://www.dlsite.com/maniax/circle/profile/=/maker_id/rg09820.html/
• http://b.dlsite.net/RG09820/
• http://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/creater_allfan.php?creater=17026/
• https://twitter.com/oka_kakao