This question comes up a lot! 🫨🫨

Both characters are adults, and though I never give their exact ages. It is implied that Khimi is in his late twenties / early thirties.

Lumi is somewhat older than he looks but not by much. Being a prophet / saint / chosen / voice of the Gods, means that his aging slowed then stopped shortly after his communion with the Gods began.

Part of what progresses their adventure is Lumi being aware that he will have to watch Khimi age and die long before he expires. That their souls will never be able to find each other as things stand for them now.

I hope this helps! 💗