Hiroshi Ozora invents the Mol Unit, a device that makes its user invincible. His plans of becoming a super hero are short lived however when his sister, Mirai, accidently modifies the suit configuration. Now she is forced to save Tokyo by herself from the evil Machinegal and his gang of all-female androids.

After the loss of her father, young Momo moves to the old family house on a remote island: wooden buildings, terraced fields... and no shopping mall. Not too fond of the new environment, Momo is also feeling uneasy about an unfinished letter her father left behind with only two words: "Dear Momo". Then, exploring the attic of her new house, she finds an antique book — and from that moment on, strange happenings occur all around her.

Momoko is a beautiful young sword fighter who was born inside a peach (momo in Japanese). She lives with her constant companions—the dog god Inugami, the monkey god Sarugami, and the pheasant god Kijigami—in a peaceful paradise. However, a demon army led by devil king invades the paradise and steals the precious treasure that protects Momoko's land. To retrieve the treasure and save the people, Momoko embarks on a great adventure with her three companions.

On her 16th birthday, Himari Momochi receives a letter stating she has inherited a mansion called the "Momochi House." Having been raised in an orphanage, this mansion is the only thing left of her real family, so Himari pays no mind to the rumors that it may be haunted. Upon entering it, she meets Aoi Nanamori and his companions, Ise and Yukari, who all seem to be squatting in her new home. Although they warn her to leave the house, Himari vows to be the one to make them leave instead. But soon, she is attacked by youkai and finds out that the house sits in the space between the world of the living and the spirit realm. Even more surprising, Aoi was chosen to be the guardian of the house—a position originally meant for Himari. But this great power came with an awful price: Aoi can never leave the mansion, and his existence in the human world has been erased. Ignoring his pleas for her to leave the mansion, Himari promises to help Aoi break the housebound curse as she begins living under the same roof as him.

On her 16th birthday, Himari Momochi receives a letter stating she has inherited a mansion called the "Momochi House." Having been raised in an orphanage, this mansion is the only thing left of her real family, so Himari pays no mind to the rumors that it may be haunted. Upon entering it, she meets Aoi Nanamori and his companions, Ise and Yukari, who all seem to be squatting in her new home. Although they warn her to leave the house, Himari vows to be the one to make them leave instead. But soon, she is attacked by youkai and finds out that the house sits in the space between the world of the living and the spirit realm. Even more surprising, Aoi was chosen to be the guardian of the house—a position originally meant for Himari. But this great power came with an awful price: Aoi can never leave the mansion, and his existence in the human world has been erased. Ignoring his pleas for her to leave the mansion, Himari promises to help Aoi break the housebound curse as she begins living under the same roof as him.

Momoko is a high school student, trying to live up to her older sister Sakura. Sakura works in an office along with many other co-workers. The two sisters, and their friends, experience the everyday hardships and situations of being a woman.

The story revolves around Yuki Kurihara, a girl who has finally been granted her wish of dating her crush Momo. At first glance, she just looks like a normal but very cute girl. However, she is in fact a maniac over Momo, taking notes of his activities and never missing the chance to see him in a cute moment. Momo, on the other hand, is inexperienced in love, and just wants to make Yuki happy.

The story revolves around Yuki Kurihara, a girl who has finally been granted her wish of dating her crush Momo. At first glance, she just looks like a normal but very cute girl. However, she is in fact a maniac over Momo, taking notes of his activities and never missing the chance to see him in a cute moment. Momo, on the other hand, is inexperienced in love, and just wants to make Yuki happy.

Izayoi Sakamaki, Asuka Kudou, and You Kasugabe have tremendous psychic powers and are bored with the regular world. An envelope arrives for each person, and when each opens their envelope, they are stunned to see the scenery around them change to a world they had never encountered before. They’ve been summoned by the Black Rabbit to help the community “No Name” to overthrow the Devil King.

Izayoi Sakamaki, Asuka Kudou, and You Kasugabe have tremendous psychic powers and are bored with the regular world. An envelope arrives for each person, and when each opens their envelope, they are stunned to see the scenery around them change to a world they had never encountered before. They've been summoned by the Black Rabbit to help the community "No Name" to overthrow the Devil King.

Izayoi Sakamaki, Asuka Kudou, and You Kasugabe have tremendous psychic powers and are bored with the regular world. An envelope arrives for each person, and when each opens their envelope, they are stunned to see the scenery around them change to a world they had never encountered before. They’ve been summoned by the Black Rabbit to help the community “No Name” to overthrow the Devil King.

Izayoi, Asuka, and You have been invited to participate in a Gift-Game at a hot spring village to help the small community there find a new water source. OVA bundled with the eighth volume of the light novel.