Li Wangyu stood with a slight toothache in the bathhouse paved with blue stones, watching a young maid of twelve or thirteen years old struggling to move a large wooden tub filled with hot water and pouring it into the bathing tub.,"To my lord, it is orchid grass. You have just recovered from a serious illness, bathing with orchid grass can ward off evil spirits.",Before his terrified eyes, a clump of long black hair slowly rose from the bathtub…。