"Before we set off, let me explain that going up the mountain to gather herbs is a voluntary activity. I will give each household a picture and introduction of basic herbs. If you don't recognize the words or have any questions, feel free to ask me. Once on the mountain, do not act alone. If you encounter danger, remember to pull this; it will send out a signal, and those who see the signal will immediately go to help. Avoid the places I've said not to go, and don't go to dangerous places. Don't stray too far from our main group." Each family can have no more than two participants. Since today is a trial run, the participants are mixed; some families sent one person, like that silent boy, while others sent four people.
