The game is simple and the answer comes with a little thought.

However, unlike the cute art style, the game itself is too gory and brutal. I was a bit surprised, but I'm playing because achieving the hidden quest at level 200 is decent. It's easy and simple, so when I first started, I passed level 50 in 15 minutes, and I think I can reach level 200 within 3 days. It's okay, except for the brutality and gore.