https://www.pixiv.net/users/303943
https://www.pixiv.net/stacc/sakayama
https://twitter.com/chakayama_toko
https://twitter.com/sakayama_shinta
https://twitter.com/intent/user?user_id=231278757
https://twitter.com/intent/user?user_id=1419397388578398208
https://e5lskk5v.fanbox.cc
https://www.pixiv.net/fanbox/creator/303943
https://sketch.pixiv.net/@sakayama
https://www.tinami.com/creator/profile/9225
http://takehatago.blog.fc2.com
https://www.mangaupdates.com/authors.html?id=11122
http://www.doujinshi.org/browse/author/7131/Sakayama-Shinta
http://www.doujinshi.org/browse/author/37855/Chakayama-Tokoroten
