The Fragrance of Medicine Is Like the Fragrance of a Daughter

Gastrodia elata (Red Arrow) - sweet in taste, neutral in nature, soothes the liver, calms the fire, and calms panic. Two years ago, a killer suddenly appeared in the world. Because of his perfect killing ability and extremely high killing efficiency, this killer quickly became famous in the world. But no one knows the killer's name, and no one has seen her. Just because every time he kills someone, he leaves a long red arrow at the scene, so people in the world call him Red Arrow!