I like the cave music and graphical atmosphere, but also the idea to have the secret life of an npc is interesting.
I couldn't go too far to explore as the enemies are very powerfull, perhaps it could be gould to balance the level a bit more.

I love art style, blacksmith animations are good. Dungeon is cool and I like the upgrade system. Maybe I consider rebalancing game, two HP for enemies is maybe too much.

A cool premise for a game, go into dungeons, get items smelt them to make gear. Rinse repeat. I like it on paper. Your art and animations are really nice especially the blacksmith swing. I feel like giving the enemies two health in the first cave was a little much as it means you basically die no matter what on the second enemy as there is no dodge mechanic. Maybe I was supposed to collect minimal ore the first couple weeks to get better gear? That's a pretty slow pace to start a game off on. Also the jumping is a little punishing, I'd recommend giving the player a little more hops to make it a little smoother and maybe up player speed? But I like where you are going and you have some good ideas.