Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.
Scientists have discovered how to 'hop' human consciousness into lifelike robotic animals, allowing people to communicate with animals as animals. Animal lover Mabel seizes an opportunity to use the technology, uncovering mysteries within the animal world beyond anything she could have imagined.
When 17-year-old Makoto Konno gains the ability to 'leap' backwards through time, she immediately sets about improving her grades and preventing personal mishaps. However, she soon realises that changing the past isn't as simple as it seems, and eventually, will have to rely on her new powers to shape the future of herself and her friends.
Suzu is a 17-year-old high-school student living in a rural town with her father. Wounded by the loss of her mother at a young age, Suzu one day discovers the massive online world "U" and dives into this alternate reality as her avatar, Belle. Before long, all of U's eyes are fixed on Belle, when, suddenly, a mysterious, dragon-like figure appears before her.
Dr. Atsuko Chiba is a research psychologist who uses a device called the DC Mini to enter her patients' dreams, wherein she adopts the alter-ego "Paprika". When the device is stolen, she must stop rogue elements from merging the dream and waking worlds.
A secret military project endangers Neo-Tokyo when it turns a biker gang member into a rampaging psychic psychopath that only two teenagers and a group of psychics can stop.