they have a similar dynamic to hecate and jayde tho hecate is more extroverted than kai and kai is more of a gremlin. while faey is more skittish and anxious than jayde. they are side characters and only appear in backgrounds till they have a proper introduction in like chapter 90 Fae uses a wheelchair
i know some people are gonna be like "wHatS wROnG wItH KaIS sKIn?!1/?" kai has vitiligo it is not made up, it is a real skin thing that- well, i dont really know much about it, but a lot of REAL people have it. so its only nice to give representation. dont you think?