Acacia is wrong, a kind of poison from southern Xinjiang. Legend has it that in order to punish her husband for betraying her, a woman from southern Xinjiang used her own blood as a bait to poison her husband and his lover. The two people who are planted with this poison are not allowed to have sex for the rest of their lives, otherwise their meridians will be severed and they will die. Unless the person who caused the poison is willing to sacrifice himself to detoxify them...