It's the translator who constantly messes up the pronouns. They also used "he" for Kivye -_-' Kalinka
yeah since english is not my first language i get very confused by translations like this and i also checked this webtoons wiki page but it says "Male(some characters believe he is female)"
why is mc using she her pronouns for artis??? didnt he saw him naked in early chapters and raud was like omg artis was a man???