The truth is, our chief maid's health has been quite bad due to overwork lately...Some of the ingredients Seiga-dono needs happened to be located right near the mansion, so we ordered some medicine in exchange for delivering them to her....When the spirit of yin grows strong, she gets depressed and limp.And in reverse, the spirit of yang makes her act restless and aggressive all day.We wish to bring balance to those two spirits and bring the patient back to health! That's what the name stands for! Nothing indecent like the villagers are talking about!