I thought that Aeric saw Artis naked and that Artis was a guy, but he refers to Artis with she/her pronouns.
I just assumed it was an error(either of the auther or of translation) happening in the earlier chapters cuz later it changes to he/his.
I thought that Aeric saw Artis naked and that Artis was a guy, but he refers to Artis with she/her pronouns.