Hey this turned out really cool! I love AI and robots (and also space) so I was excited about your story concept.
I liked a lot of the scifi visual elements, those glitch effects look great! The sprites were nice and polished too, I liked the expressions and the blinking/talking animations. The slight moving of the sprite boxes was a fun touch, I especially liked when Dex's box slid down when he was feeling embarrassed/awkward haha.
My favorite character ended up being Dex, he just felt sincere and like he was trying his best even though he's pretty incompetent at some things. And it was cute how proud he was of his crappy ship (lol sorry Patsy). I liked Seren a lot too, I was happy to see a nonbinary character! I think they had a good balance of robot elements--things like calling people by their DNA signature number--and feeling pretty human. I'm curious about their backstory, the part where they mentioned being a simulated personality based on another person really intrigued me. I'm hoping we find out more about that in the full game, along with seeing what's going on with the whole mystery of Seren's origins.
Overall a great demo and congrats on completing another Nanoreno! :] I'm def looking forward to the full game!