Artist, motorbike rider.
Japanese name: 芳沢 緋琴 (Yoshizawa Hikoto)
The other name: 緋琴 (Hikoto) or ひこ (Hiko)
Circle name: 緋色彩堂 (Hiiro Saidou or Hi-i-ro-SAIdou)
Site name & old circle name: やおはん (yaohan)
https://www.pixiv.net/users/16222
https://www.pixiv.net/stacc/hikoto
https://twitter.com/hikottan
https://twitter.com/intent/user?user_id=134750384
https://hi-iro-saidou.booth.pm
https://seiga.nicovideo.jp/user/illust/1302954
https://www.nicovideo.jp/user/1302954
https://nijie.info/members.php?id=42300
https://pawoo.net/@hikoto
https://pawoo.net/web/accounts/164317
https://hikoto.fanbox.cc
https://sketch.pixiv.net/@hikoto
https://www.tinami.com/creator/profile/5161
https://ask.fm/hikottan
http://mixi.jp/show_friend.pl?id=325991
http://privatter.net/u/hikottan
http://yaohan.sakura.ne.jp
http://portal.circle.ms/Circle/Index/10280187
http://webcatalog.circle.ms/Perma/Circle/10280187
