6/10
While there's no evidence for it in the show, I can see this one being kinda cute. Kylan's calm and collected demeanor could definitely mellow out Juni's talkative and slightly brash one. I personally ship him more with Brea, as they feel more similar to one another, but again could be a really interesting dynamic, it just doesn't seem as likely to me.
Overall: Could be cute, though I don't think they would want to go this way in the cannon.