Yu Azuma, a high school girl, aims to be an idol. To achieve her dream, she sets four rules for herself: she will not be active on social media, she will not have a boyfriend, she will not stand out in school, and she will make friends with beautiful girls from the north, south, east, and west.
After a draining December, Sakuta is quickly nearing the end of his second year of high school. Since Mai is a third-year student, they don't have much time left together before graduation rolls around. Meanwhile, his sister, Kaede, is slowly but steadily venturing outdoors again. Just as she begins to find her footing, she announces her most ambitious goal yet—attending her brother's high school! Sakuta knows better than anyone how difficult this will be for Kaede, and he's ready to support her however he can. He's just not sure if that's what's best for her...or what she really wants...
Hitori Gotou is a high school girl who's starting to learn to play the guitar because she dreams of being in a band, but she's so shy that she hasn't made a single friend. However, her dream might come true after she meets Nijika Ijichi, a girl who plays drums and is looking for a new guitarist for her band.
The isolationist Akane Clan, composed of an all-girls body mainly consisting of young kunoichi in training, has a code to which they all must adhere: "As men are dangerous beings, interacting with them is forbidden."
Kunoichi Tsubaki, the leader of the Dog Squad, is an excellent trainee with a promising future, but she has started to experience a strange feeling in her heart... whenever the subject of boys is brought up.
Master spy Twilight is the best at what he does when it comes to going undercover on dangerous missions in the name of a better world. But when he receives the ultimate impossible assignment—get married and have a kid—he may finally be in over his head!
Not one to depend on others, Twilight has his work cut out for him procuring both a wife and a child for his mission to infiltrate an elite private school. What he doesn't know is that the wife he's chosen is an assassin and the child he's adopted is a telepath!
Roubai Private Academy is a prestigious girls' middle school in the country. For Akebi Komichi, donning this school's sailor uniform is a dream come true. Her middle school dream life is finally beginning. Verdant open countryside vistas. The slowly flowing time of youth.
Traumatized by a childhood incident with a friend who took exception to his love of traditional dolls, doll-artisan hopeful Wakana Gojō passes his days as a loner, finding solace in the home ec room at his high school. To Wakana, people like beautiful Marin Kitagawa, a trendy girl who's always surrounded by a throng of friends, is practically an alien from another world. But when cheerful Marin--never one to be shy--spots Wakana sewing away one day after school, she barges in with the aim of roping her quiet classmate into her secret hobby: cosplay.
A faceless clan lives in a large mansion, masquerading as nobles. Their caretakers are living dolls who spend their days cleaning up the dirt the tenants leave behind. But there’s a deeper mystery at play… and the secret of the house will be unveiled.
The story begins when the protagonist, a 14-year-old girl named Ai Ohto, hears a mysterious voice while walking around town late at night. It gives her an egg, and beckons to her: "If you wish to change the future, you need only choose now. Believe in yourself, and smash the egg."
Although admired at school for her amiability and academic prowess, high school student Kyouko Hori has been hiding another side of her. With her parents often away from home due to work, Hori has to look after her younger brother and do the housework, leaving no chance to socialize away from school.
Meanwhile, Izumi Miyamura is seen as a brooding, glasses-wearing otaku. However, in reality, he is a gentle person inept at studying. Furthermore, he has nine piercings hidden behind his long hair and a tattoo along his back and left shoulder.
By sheer chance, Hori and Miyamura cross paths outside of school—neither looking as the other expects. These seemingly polar opposites become friends, sharing with each other a side they have never shown to anyone else.
Surrounded by a forest and a gated entrance, the Grace Field House is inhabited by orphans happily living together as one big family, looked after by their "Mama," Isabella. Although they are required to take tests daily, the children are free to spend their time as they see fit, usually playing outside, as long as they do not venture too far from the orphanage — a rule they are expected to follow no matter what. However, all good times must come to an end, as every few months, a child is adopted and sent to live with their new family... never to be heard from again.
However, the three oldest siblings have their suspicions about what is actually happening at the orphanage, and they are about to discover the cruel fate that awaits the children living at Grace Field, including the twisted nature of their beloved Mama.