The story follows three 15-year-old boys who go to a prestigious horse racing academy to become jockeys. The three-year academy is 10 to 20 times harder to enter than most schools, and whoever wishes to enter must pass an academic, physical, and fitness test. Formerly a member of an idol group winning fans and fame, Yuu Arimura sets out to meet what his heart desires after becoming enamored with horse racing. Having grown up on an island, Shun Kanami has always yearned to ride with horses. Amane Grace was born in England and is lost in the path his parents have set for him, but he still takes on his dream.

Ryousuke Hazuki is a young man whose heart has been stolen away, stopping by the local floral shop daily in order to catch a glimpse of the beautiful Rokka Shimao, the shop's owner. In hopes of getting close to her, he decides to get a part-time job at the shop, but before he is able to make his move, he runs into a major roadblock: in her apartment dwells a ghost who claims to be Rokka's deceased husband. Atsushi Shimao has quietly watched over his widowed wife ever since he passed three years ago. However, Hazuki is the first person to ever notice him, and the two quickly find themselves at odds: the jealous Shimao attempts to thwart the suitor's advances and possess his body, while Hazuki simply wants the ghost to pass on for good, allowing Rokka to move on from the past and him to be with the one he loves. As both men refuse to let go of their desires, an unusual relationship forms between a troubled woman, an unrelenting ghost, and a stubborn man in love. [Written by MAL Rewrite]

Fifty years ago, malevolent stones known as Dark Brings brought about the "Overdrive," a calamitous event that destroyed one-tenth of the world. In the present day, the nefarious organization Demon Card seeks the Dark Brings' power for their all but innocent intentions. Haru Glory, a sword-wielding silver-haired teenager, inherits the title of Rave Master: the person who wields the power of the legendary Rave Stones, artifacts capable of destroying the Dark Brings. However, the many Rave Stones were scattered across the globe as a result of the Overdrive, allowing Demon Card to continue their malpractices. Groove Adventure Rave follows Haru, his strange dog Plue, the fiery blonde Ellie, and the infamous thief Musica, as they embark on a great journey that will take them around the vast world, searching for the Rave Stones that will finally end Demon Card's injustice.

Reaching a period of life where they are neither a child nor an adult, 12-year-old Hanabi Ayase and Aoi Yui meet with life-changing events. Due to the mischievous demeanor of her male classmates, Ayase does not think highly of the opposite sex. However, her perspective begins to change after she is paired with the kind-hearted Takao Yuuto for a class assignment and unexpectedly shared their first kisses with each other on the school rooftop. With her best friend discovering love, Aoi yearns to seek her own. She finds herself falling in love with the rash Kazuma Hiyama after protecting her from a rejected suitor who had talked behind her back. 12-sai.: Chicchana Mune no Tokimeki follows the four in this phase of adolescence. As they grow up alongside each other, this sweet romance depicts the innocence and excitement of first love. [Written by MAL Rewrite]