You noted that this was a prototype with many bugs, so I went into it with that understanding.
The opening cutscene was difficult, as others have mentioned, with the slow pacing and grammatical errors. One thing I think you could update that would make a huge difference would be that instead of a mouse click skipping to the next line of dialogue, it could first finish the current text. And then clicking again would start the next line.
The battle system actually looks like it's off to a good start! The UI is simple but nice looking and easy to read. The character sprite is nice too. It's still pretty buggy here though. I got close to winning a battle, but I couldn't get "skills" to work so the last enemy beat me when we both had a tiny amount of HP.
The artwork and sprites in the DevRoom all look great! I think is this off to a good start, and I hope you keep working on it!