『Eno』

An over 150-year-old immortal witch, called"the Witch of the Grotto"(洞窟の魔女, Dōkutsu no Majo). Naive and deadly shy, but yearning for recognition, she usurps the title of"Highland Witch" to capitalize on Azusa's reputation and make herself some new friends. When Azusa hears of the fake, she confronts Eno and afterwards helps her in selling her mandragora-based medicines, which prove extremely popular. Her title stems from the location of her workshop, which is situated inside a hard-to-reach underground location, thus contributing to her initial lack of renown.