Out of the three girls, one, in particular, is by far the creepiest. The two that are undoubtedly unsettling but don't take the top spot are Mihiro Iwasaki, a model obsessed with what others think about her, and her fingernails eventually grow, to unnatural lengths, virtually become weapons. The other is Mana Saeki, a high schooler with a lousy attitude and trusts no one. She turns into what is known as a Nopperabo, which is a yokai with no face. And the girl that takes the cake for the creepiest of the bunch is Michiko Yamane, an introverted college student who, by night, metamorphosizes into a Rokurokubi, a female yokai with a long snake-like neck.