https://www.pixiv.net/users/309668
https://www.pixiv.net/stacc/yottantan
https://twitter.com/yottan0211
https://twitter.com/intent/user?user_id=321223854
https://fantia.jp/fanclubs/6842
https://seiga.nicovideo.jp/user/illust/938118
https://www.nicovideo.jp/user/938118
https://pawoo.net/@yottan
https://pawoo.net/web/accounts/89621
https://yottan.fanbox.cc
https://www.pixiv.net/fanbox/creator/309668
https://sketch.pixiv.net/@yottantan
http://mixi.jp/show_profile.pl?id=5055973
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG20998.html
