In comparison to I who was just wearing normal travelling clothes, Rudi was in full equipment.
A large knapsack, it seems that staple food and some other stuff is packed in for the worst case.
Since it's Rudi, I thought he would go in empty-handed and return like that.
After saying that [You shouldn't underestimate the forest. There are monsters that can avoid my Rock Bullet after seeing it.] is how he responded.