Hitoha is the youngest Marui sisters from the Mitsudomoe franchise. She is quiet, introverted and sometimes has a ghostly "The Ring"-like appearance but she can be very manipulative and cunning when needed.
Hitoha is the youngest triplet and usually keeps to herself so that she can read pornographic books and magazines without being disturbed. To aid her in this, she has developed a demon-like The Ring girl stare that can strike fear into the most hardened of hearts. Despite her gloomy nature, Hitoha falls in love with a hamster named Nipples and devotes herself to him completely. She, along with her teacher Satoshi Yabe, is huge fan of the Gachi Rangers sentai series and has a amassed a collection of items to the series which she keeps secret from others.
Hitoha is a character in both Mitsudomoe anime series, Mitsudomoe and Mitsudomoe Zoryochu!, published by Aniplex with animation production by Bridge and the manga series Mitsudomoe, published by Akita Shoten and serialized in Weekly Shonen Champion. Hitoha's original design is credited to manga writer and illustrator Norio Sakurai while her anime version is credited to Takaharu Okuma. Hitoha makes her first manga appearance in volume 1 of the series and her first anime appearance in Mitsudome episode 1, "The Marui Family! The Good, the Bad and the Ugly!".