despite this not being to far in, with what is given so far is absolutely fantastic. love the conversation at the start [my only frustration I had was when trying to scroll up while the text popped, and I was dragged back down. like Siren!Sans dragging me to the water] a unique lil start and giving an excuse to lead our poor character to the game itself. felt a bit sad the soul trait gone with be determination, but that faded away after first fall and makes much sense. as no other soul trait could endure...that and also piss of a certain skeleton that I was downright cackling as I refused to perish.
with the only encounters being of flowey, and dear sweet toriel my heart truly broke once I finally got about reaching the end of the demo. she was so sweet, and also even when I fucked up I just went right back to where I was prior [I had a mental lil snort thinking if there'll also be a death tracker as in your other work of Underfell]
I cannot wait to see what you have in store for the upcoming chapters and the undertale cast met along the way!