If I remember correctly, after you die, there will be several questions that aren't translated(?)
Q: The first one is do you want to read any hint to how u can be better at the game?
1. Yes
2. No
Q: Do you want to restart the game with carry-over items and units, or return to title screen
1: Restart with your things (basically new game+)
2. Return to title screen
I don't remember the order of the next one but one of them is choosing the difficulty from 1 to 5 stars. The harder the better items drop. One other question is do you want to skip the tutorial?