Artist.
Japanese name: 椎香 貞正 (しいか さだまさ)
https://www.pixiv.net/users/11314
https://www.pixiv.net/stacc/si_ka_sadamasa30
https://twitter.com/S_SadamasaOv18
https://twitter.com/Shiika_Sadamasa
https://twitter.com/intent/user?user_id=81331823
https://pawoo.net/@Shiika_Sadamasa
https://pawoo.net/web/accounts/115074
https://waydqmvv.fanbox.cc
https://sketch.pixiv.net/@si_ka_sadamasa30
https://www.tinami.com/creator/profile/1551
https://www.youtube.com/user/SIKASADAMASA
https://bsky.app/profile/shiika-sadamasa.bsky.social
https://bsky.app/profile/did:plc:zofymagvdl6onezyr275tisx
http://plus.google.com/101842273252833070248/posts
http://deneikouboubu.blog.fc2.com
http://theinterviews.jp/shiika-sadamasa
http://twitpic.com/photos/Shiika_Sadamasa
http://yfrog.com/user/Shiika_Sadamasa/photos
