I don't think you can see this on the models so here,I gave them a purpose because why not🫠.So I don't know if this may also be cut short so the one with ♥(heart) =male and one with 🔘(circle)=female.The reason for this is because Idk maybe twins(one boy and one girl) could like crossdress and fool the whole place,it's a weird scenario,okay😓 but we do have ✨twins ✨ like this in this webtoon,so yeah😑.Edit:now that I think about it,the Mc,Kyong could wear contacts and crossdress as his sister,Yeong-Ja and Yeong-Ja could do the same!🤔