Cool RPG.
Sprite work looks great. I think you might want to look into lower the file size by batching textures, lowering some a bit, etc.
Battling feels like it needs tweaking. Encounter rate is a bit high. I'm not big into reading a lot, especially when I'm trying to play many many games in a short amount of time, so I skipped over the second NPC dialogue about combat. It doesn't feel great to lose Tech/MP/Skill Points when getting hit. Especially if not going first looses you your all your points. I like that Defending gets you points but if that's the only incentive to defend, then gameplay will feel old quick because it'll just be defend / kill / defend / kill etc. Maybe additional characters would help this so there'd be multiple targets and less chance to lose Tech Points. Or let defend generate points on top of getting it from getting attacked while defending. Also, the Noms did a large amount of damage, so if there were two, I'd run because I doubted I could win. Normal random battles shouldn't be so tough.
Need to pause ATB when other turn/action is being taken. The player bar would fill and then not start the player turn until the Enemy bar filled, which begs the question of why not simply use Turned Based instead. I'd suggest adding button controls instead of having the mouse used sometimes but mostly not unless you want to allow both.
I beat the Boss but it went blank right after, not sure if there was anything after that.