Artist, illustrator, colorist.
Japanese name: 磨鞘 一佳 (the artist said "read this name either way, Masaya Ichika or Masaya Kazuyoshi")
The other name: 磨鞘 いちか (Masaya Ichika)
Circle & site name: 人生堕落研究所 (Jinsei Daraku Kenkyuu-jo, Life Degeneration Laboratory, aka. LDL)
The other circle name: U.N.Keepers (the other member: Usui_(UNK))
https://www.pixiv.net/users/210400
https://www.pixiv.net/stacc/raia
https://twitter.com/masaya_mekemeke
https://twitter.com/masayanobetuaka
https://twitter.com/mipanekosabu28
https://twitter.com/intent/user?user_id=61617664
https://twitter.com/intent/user?user_id=1127958211766603776
https://twitter.com/intent/user?user_id=1282956207028703234
https://twitter.com/intent/user?user_id=1486314871566508043
https://nijie.info/members.php?id=20817
https://pawoo.net/@masaya_ichika
https://pawoo.net/web/accounts/108040
https://masayan.fanbox.cc
https://sketch.pixiv.net/@raia
https://skeb.jp/@masaya_mekemeke
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG06347.html
https://poipiku.com/1553289/
https://profcard.info/u/3gqGQaUOTJesUtvSQubaZLlg8Re2
https://twitter.com/masaya_ichika
https://twitter.com/masayamekemeke2
https://twitter.com/riot46_kazuyosh
https://twitter.com/intent/user?user_id=2837817917
http://privatter.net/u/riot46_kazuyosh
http://riot.sakura.ne.jp/ldl/
http://c10001775.circle.ms/oc/CircleProfile.aspx
http://c10036676.circle.ms/oc/CircleProfile.aspx
http://b.dlsite.net/RG06347/
http://www.doujinshi.org/browse/author/10367/
http://www.doujinshi.org/browse/circle/4446/
http://theinterviews.jp/riot416
http://p.twipple.jp/user/riot46_kazuyosh
http://twitpic.com/photos/riot46_kazuyosh
