It should be "bring its corpse" instead of "bring it's corpse".
The combats and scenes I played near the start are about right in terms of length, I know other games can ramble on a lot more.
Narratively speaking, it's weird to hear characters called 'liches' and then have them be blinked out of existence like it's nothing, by characters that seem like mooks, without any special effects. I'd either have some special effects there or else make a point of them not being like the liches most people would think of as liches. Old man seems pretty decent in his fight but then he doesn't really do anything to protect himself.
The pre-battle preparations are a awkward to begin with, it's easy to forget you have to click an empty space and then Fight or it's easy to accidentally remove characters from the fight and not know what you did. It might be hard to improve that in an RPG engine, however...
The game prompts you to save after almost every choice except choosing to fight the skeletons, which is odd, since that needs you to save more than choosing to go with them.
I was surprised to see quite a bit of difference in just that first choice, not something indies do a lot. The RNG seems pretty consistent, too, it isn't easy to win the chase sequence purely by RNG but the RNG also keeps you from dying in one turn as well, so using the healing item is a consistent way to win. That's good.