&Quot; it's a kind of poison that's especially effective on the soul. It's very special. It can slowly erode a person's soul and make it extremely weak. If a person's soul is weak, no matter how strong he is, he won't be that strong. Most importantly, this poison doesn't have to be eaten to be effective. As long as you touch a person with this poison, it'll be effective. It also represents the duration of the flare-up. If there's less contact, the flare-up time will be very slow. If there's more contact, the flare-up may occur immediately, and in the end, it may directly poison the person."