This is very buggy right now, so far:
I ended the fight peacefully once, and then the game came to a screen with absolutely nothing to do on it, I reloaded
Entered a fight and immediately ran, the game froze, I reloaded
Killed an enemy, the game showed I lost for some reason (maybe I died the same turn as well, which should be possible), so I pressed try again, which brought me to the arena again, without my character, and with the enemy's health in negative (same as the last time I killed him) and his dying animation playing. I tried talking, but as soon as I sent the message, the game said something like "base instance is null", and all controls disappeared
I hope you fix this soon because this looks like an interesting project.