Artist gives name reading as かじゅん.
https://www.pixiv.net/users/125147
https://www.pixiv.net/users/509469
https://www.pixiv.net/stacc/koubuin
https://www.pixiv.net/stacc/yarihoo
https://twitter.com/Kazyun_Yarihoo
https://twitter.com/intent/user?user_id=155817986
https://sketch.pixiv.net/@koubuin
The following tags are aliased to this tag: kayun_(yarihoo) and koubuin (learn more).