Due to the need to fight the Chainsaw Sisters in a small space, the difficulty of "Resident Evil 4 Remake" is higher than some BOSS battles. Please see below for the guide to kill the Chainsaw Sisters without any damage in the Resident Evil 4 Remake.
On Normal difficulty, there is a light bulb two steps ahead of this place.
I took the crossbow bolts and installed the crossbow bolt mines, and shot them at the light bulbs. Four of them were shot, and I had four.
You can cum two or three more, and they will trigger GG when they come in.
Because I only shot four, they were not powerful enough, and I wasted one extra grenade and two sprays.