Bana flower, the flower is as red as blood, grows on the roadside of Huangquan. It is non-toxic and tasteless. If you are contaminated with this flower liquid, you need to use human blood to remove it. If this flower is mixed with the blood of a pair of lovers, it will become extremely fragrant and extremely poisonous. If a person is contaminated by one drop, his body and bones will be gone in an instant. But this poison has a nice name called "Hundred Years of Good Harmony".