Unlike many schools, attending Hyakkaou Private Academy prepares students for their time in the real world. Since many of the students are the children of the richest people in the world, the academy has its quirks that separate it from all the others. By day, it is a normal school, educating its pupils in history, languages, and the like. But at night, it turns into a gambling den, educating them in the art of dealing with money and manipulating people. Money is power; those who come out on top in the games stand at the top of the school. Yumeko Jabami, a seemingly naive and beautiful transfer student, is ready to try her hand at Hyakkaou's special curriculum. Unlike the rest, she doesn't play to win, but for the thrill of the gamble, and her borderline insane way of gambling might just bring too many new cards to the table. [Written by MAL Rewrite]

As Yumeko Jabami's fame grows and the reputation of the student council dwindles, Kirari Momobami decides to revolutionize the group. To this end, she announces an election for its next president. The rules are simple: each student in the school receives one chip. Whoever has the most chips by the end of thirty days becomes both the new president and the head of the Momobami clan. Upon receiving news of this development, the Momobami branch families spring into action. Eleven transfer students arrive at Hyakkao Private Academy, each aiming to lead both the school and the Momobami clan. Equipped with unique talents, they will compete to get as many chips as possible—but their chips are not the only things on the line. [Written by MAL Rewrite]

Tokiko Mima, nicknamed "Key," is a 17-year-old girl living in the Japanese countryside who, despite her human-like appearance, is a robot. When Key's grandfather Dr. Murao Mima passes away, he leaves her a dying message, telling her that she can become a real girl if she is able to make thirty thousand friends. Thus, Key moves from the quiet Mamio Valley to the busy streets of Tokyo, where she soon runs into her childhood friend Sakura Kuriyagawa. Key quickly becomes enamored with idol singer Miho Utsuse and wonders if becoming a singer will allow her to make the amount of friends needed for her to become human. But Miho carries a ominous secret: she is connected to Jinsaku Ajou, an old rival of Dr. Mima trying to make new a breakthrough in robotic weaponry. As Key works to become a real girl, Ajou sets a dangerous plan into action, and it turns out there's much more to Key than meets the eye. [Written by MAL Rewrite]

Having failed 19 job interviews in one day, Juri Yukawa's dreams of moving out of her parents' home are utterly dashed. Stuck living with her working mother Nobuko, NEET brother Tsubasa, laid-off father Takafumi, and single-parent sister Sanae, the only hope for this family to raise a decent adult is her little nephew Makoto. However, this struggling family's life takes a turn for the worse when Makoto and Tsubasa are violently kidnapped by a mysterious organization and held for ransom. With only 30 minutes to deliver five million yen to the criminals, Juri's grandfather reveals a dangerously powerful secret to her and Takafumi. By offering blood to her grandfather's mystical stone, the three enter the world of "Stasis," a version of their world where time stops for everyone but the users. Having arrived at their destination, their rescue efforts go awry when they are assailed by a surprising group of people who are somehow able to move around within Stasis. While all hope seems lost, a monstrous giant known only as the Herald appears amidst the chaos, its intent and motivations as cryptic as the very nature of this timeless world. [Written by MAL Rewrite]