The same reason why the air spirit has a beard. They are genderless but able to customize their looks (just like the mc made boobs with illusion magic).
so can you explain why the mc doesnt jus always use magic? sorry i forget things easily and i dont really understand
Her boobs disappeared every time her magic was blocked or run out and then everybody treated her like a corssdresser, so she gave up.
The spirit kings on the other hand normally don't stay in the human realm for long, and they have more magic, so they probably have no problems keeping their form. We also don't know if not their whole human appearance is just magic illusion. Maybe they are not just genderless but also formless just like their respective elements.
thanks for explaining ^^
why does the earth spirit king have boobs when the mc cant? i thought all spirit kings (and their kids) were supposed to be genderless ;-;