URLs

• https://www.pixiv.net/users/39679031
• https://www.pixiv.net/stacc/user_ufkx8733
• https://twitter.com/Tractrix_
• https://twitter.com/intent/user?user_id=1108349889434390528
• https://www.artstation.com/tractrix
• https://tractrixdel.tumblr.com