Kass and Kai have the personality of stale bread.
If you lift Kass and Kai from their bios and even respective stories and replace them with literally anyone else, the story doesn't change. It's a sign of poor development. They have no quirks, no conflicts, no flaws and no life. They have NO character whatsoever. The bios describe stuff, not the character. Kai is a keyboard combo with tits, and that's about as interesting as she gets. "It's magic, we ain't gotta explain shit" is the cover for lack of depth of character. She could be conflicted and plagued by creeping madness. Nah. Kass could have just had his old JoJ story modernized. Nah. @riot is just content with stale NPC background character archetypes.
main over here. I completely agree.