Artist, mangaka. Formerly tagged as select_(dragon62).
Japanese name: 越山弱衰 (Etsuzan Jakusui)
The other name: 越山ジャクソン (Etsuzan Jackson)
Old names: SELECT or KJ
Solo circle name: はよしねま (Hayo Cinema)
The other circle (1): TETRAぽっど (TETRApod) (the other members: Tyshi, Mihiro, Kuriichi, Reeba and Tera-aki)
The other circle (2): KJR750
https://www.pixiv.net/users/120880
https://www.pixiv.net/stacc/etuzan_jakusui
https://twitter.com/hayo_cinema
https://twitter.com/select_button
https://twitter.com/intent/user?user_id=135460183
https://twitter.com/intent/user?user_id=4229488579
https://pawoo.net/@etuzan_jakusui
https://pawoo.net/web/accounts/197359
https://lm0rngnx.fanbox.cc
https://sketch.pixiv.net/@etuzan_jakusui
http://www.amazon.co.jp/s/search-alias=books-jp&field-author=越山弱衰
http://c10023348.circle.ms/oc/CircleProfile.aspx
http://c10052308.circle.ms/oc/CircleProfile.aspx
http://portal.circle.ms/Circle/Index/10352386
http://webcatalog.circle.ms/Perma/Circle/10352386
https://www.dlsite.com/maniax/author/=/author_id/AJ014307/
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG37809.html
http://www.melonbooks.co.jp/search/search.php?name=はよしねま
https://www.pixiv.net/stacc/dragon62_select_ball3601
http://twitpic.com/photos/etuzan_jackson
