Miki Onimaru is a poster girl that works at her mother's Chinese ramen restaurant. She appears to be a normal girl, but she can become very violent if provoked. She picks a fight with her mother and accquaintances as a result on an almost daily basis, causing a series of troubling mishaps in their otherwise normal lives. (Source: ANN)

With his parents abroad, Kimihito Kurusu lived a quiet, unremarkable life alone until monster girls came crowding in! This alternate reality presents cutting-edge Japan, the first country to promote the integration of non-human species into society. After the incompetence of interspecies exchange coordinator Agent Smith leaves Kimihito as the homestay caretaker of a Lamia named Miia, the newly-minted "Darling" quickly attracts girls of various breeds, resulting in an ever-growing harem flush with eroticism and attraction. Unfortunately for him and the ladies, sexual interactions between species is forbidden by the Interspecies Exchange Act! The only loophole is through an experimental marriage provision. Kimihito's life becomes fraught with an abundance of creature-specific caveats and sensitive interspecies law as the passionate, affectionate, and lusty women hound his every move, seeking his romantic and sexual affections. With new species often appearing and events materializing out of thin air, where Kimihito and his harem go is anyone's guess! [Written by MAL Rewrite]

After taking one hundred secret photos and observing him from afar for months, second-year high schooler Yuki Kurihara has finally mustered up the courage to ask out her first-year crush Shinya "Momo" Momotsuki. Although taken by surprise, the bashful Momo accepts; however, he does not know the profoundly abnormal truth. As her strait-laced friend, Norika Mizuyama, has observed, Yuki has developed some unnerving—but nonetheless sincere—habits: taking pictures of Momo in secret, doing extensive research into his personal life, collecting his used straws, and even going "Momo watching." Though Momo remains blissfully unaware of his new girlfriend's peculiar habits, he does notice some oddities in their daily conversations. Still unsure and nervous about his first relationship, Momo finds himself regularly getting into awkward interactions due to his inexperience, but nevertheless resolves to make his new girlfriend happy. Momokuri follows Yuki and Momo as they shyly explore their newfound love, and also deal with the problems that arise from it. [Written by MAL Rewrite]

Mikage and Tomomi Matsunaga are Miracle Girls: they have a telepathic link with each other and can teleport when they link their little fingers. Tomomi is a sports star and has a boyfriend called Noda. Mikage is the smartest student in the school and is in love with her sempai. He moved to London to study but they still kept in touch, that is until a selfish princess called Marie decides that he should come with her back to Diammas. Back in Japan the twins are having various problems of their own. But they soon realise that there is a link between Marie, an ancient legend, and a girl they know called Emma. (Source: ANN)