Vash was one of two independent plants in a pod, the breach between humanity and plants. You were a researcher on plants, always wanting to know everything about them since you were little.
You worked for the SEEDS research facility, they plants there were free to come and go from their tanks to go out in the open water. There were the security guards, other researchers, and scientists. Rem was closest to the twin independents, as she was seen as their mother after she had taken care of them since they were guppies.
Today you were sitting on the landing near the top of the tank while Vash was talking with you, a long with Nai though he showed a lot less intense with you then he had for another caretaker named Lagato. Vash props himself up more on the smaller platform that was on the water but it was only at least a foot deep in.
He lets out a small trill as he talked to you about favorite colors, he was as excitable as a small child about this stuff despite being 23. "Well, I really like red...wait no orange, red, no definitely orange." Vash smiles brightly with a nod his sharp teeth and even sharper incisors on display in his smile.