What should wolves not do when they return to three years ago?

If you don't kill grandma butterfly, you will go back to the first time three years ago.

To enter the dream, you need a bell to put this prop, and you need to get it at NPC. First of all, send it to the Buddha statue outside the city gate and hit the general forward. Keep walking, you will bump into several soldiers, and you will meet a man sitting on the ground. His mother is in the shabby house next door to him. She'll ask if you're his son. If you choose not to talk, she will call you. Use this bell to return to your base. There is a Buddha statue on the left of the woodcarver who enters the door. Put the bell on it and there will be CG. After reading it, you will cross it.