https://www.pixiv.net/users/26539832
https://www.pixiv.net/stacc/user_kaph7525
https://twitter.com/mosyanituyoi
https://twitter.com/ryuukiyu
https://twitter.com/intent/user?user_id=775980900936851456
https://twitter.com/intent/user?user_id=781423594387574786
https://www.nicovideo.jp/user/56750479
https://skeb.jp/@ryuukiyu
https://odaibako.net/u/ryuukiyu
