You didn't know? If you thought Michael being the angsty human stepsister of Spock who somehow was a better Vulcan than Vulcans was unrealistic, get ready for Adira.
Adira is a human non-binary girl who was in a relationship with Gray Tal, a transgender male Trill. TL;DR Gray gets hurt bad, and his symbiont gets passed to Adira (despite TNG establishing that humans aren't compatible hosts), becoming Adira Tal. The symbiont holds the memories of all the previous hosts, which somehow allows her to chat with Gray as a separate person. IIRC it even got to the point that Gray's vision can go and experience things independently of Adira.
