Narutaki-sou residents • is the landlady of Narutaki-sou and Ryūshi's 16-year-old second cousin. She attends the same high school as Tamami. Kozue has several
different personalities that come out when she experiences different emotions, but returns to her original one after sleeping or passing out. • is a caring and tough girl who appears when Kozue is surprised or angered. She is an extreme lightweight, and unable to tolerate anything but
umeshu (in the manga), in the anime she can't even smell liquor without passing out. • is a curious and playful residence of Narutaki-sou. • is a girl who loves cosplay. • is a shy girl who initially avoided speaking to people. She is skilled at
sleight of hand and card tricks.
By room number • is Kozue's close classmate who always has a camera and likes to take pictures of Kozue in embarrassing situations. She is also an inactive member of the
occult club with her. • is the main protagonist of the series who is an aspiring children's book author. Ryūshi moved into Narutaki Sou so he could attend the Sumeragi Design School in Tokyo. • is a student of Washida University for one year, but it turned out to be too expensive, so she took a year-off. • is an irresponsible girl from a wealthy family whose father is a talented sculptor. Despite her evident uselessness throughout the series, she cares for Asami. • is a girl who lives lives in room 5 with only her adopted mother since her adopted father died when she was younger. She keeps things together despite her mother's problems, pulling most of the workload at home and keeping track of expenses. • is a boy with
ventriloquism to speak through his puppet, Johnny. • is Yukio Haibara's hand-puppet of a brown dog through whom the latter speaks using ventriloquism. They both act as if the puppet were really the one speaking; Johnny often "speaks" as if Haibara is the extra part. It is revealed near the end of the manga that Johnny was "born" when Haibara was at a loss as to how to get the sad and lonely Kozue to talk to him after her parents left her.
Sumeragi (Imperial) Design School • is Shiratori's teacher. Students who are disobedient or forget their homework are subjected to "the mysterious closet", which apparently is a frightful ordeal. She has a habit of having her eyes half open and talking happily. • is Shiratori's classmate who is always trying to impress young women. • is Shiratori's classmate who wears glasses and is a devoted fan of manga. • is Shiratori's classmate who uses her batting skills to punish Tsubasa for his womanizing. She normally uses a spiked baseball bat, but because of the adults' circumstances, it was taken away and replaced with a plastic megaphone.
Seika Tandai Fuzoku High School • is head of the occult research lab, where Tamami and Kozue are technically members. • is Sakura's younger sister who serves as club president and conductor.
Asami's Classmates • is Asami's classmate who speaks in Kansai dialect. She tries to keep control of Michiyo's haughty attitude, often using heavy texts such as dictionaries or telephone books as punishment. • is Asami's rich and slightly snobby classmate. She is often seen with old-fashioned poses with her fan.
Futaba Ginza shops • is a baker whose bakery is famous for its
taiyaki. • is one of the bakers who is known for going through several unrelated jobs in quick succession.
Minazuki residence • is Sayoko's father who works as a sculptor and tends to be controlling. • is Sayoko's mother who cannot stand sunlight, thus much more active at night. Yū walks with a cane, which she applies to her husband's feet when he is rude. • is Sayoko's younger sister and Asami's aunt. Having lived in Italy since childhood, she is somewhat awkward at speaking Japanese. • is the senior maid of the Minazuki household. Despite her tough appearance, she has a soft spot for things like teddy bears. Tachibana is conscious of her height, thinking herself to be too tall (at the shrine, her wish is to shrink). She is over-protective of Mahiru. • is one of the maids of the Minazuki household. Sakura's careless and clumsy personality often lands her in trouble. ==Manga==