"The Legend". Problems with the walkthrough.

I have a problem (( I enter the elevator, it takes me up, then the level loads, and then there's another loading screen for a battle where I can't defeat the monsters (( What should I do? I think I messed up the game.

But now you know that you shouldn't run away from monsters through a portal to another location. :D

Possible solutions:
1. Level up until you can defeat the monsters (you might even have to completely change your army).
2. Die a few times until you finally defeat the squad.
3. Start the game over or revert to a save where you haven't visited the location with the monster yet.
4. Manually change the monster's location in the save file if you know how (if not, it's better not to mess with it).
5. Launch the game in dev mode and press Shift+K during the battle to kill everyone. :)