I kinda get the ideas. It's nice to be able to venture for something and fight waves of enemies.
While the overall aesthetic is nice. The control is rather unfriendly for players.
It's adding difficulties on top of the NPC side.
Also I don't even know how to control during the waves and kinda lost during venture time.
The HUD is too minimal, it didn't show much needed info. So I'm not even sure how the wave defend triggered. Maybe after I talked with the NPC? Well then that's added difficulty if I have no clue what I'm getting into, right?
So maybe provide more clues toward various activities. Draw the clear borders between the venture scene and the wave scene, so the player knows when to venture and when to defend.