After socially awkward technology specialist Manabu "Gaku" Taira is saved from thugs by the outgoing Haru Tennouji, the two men find that they get along with each other well. Years later, Gaku, who is having a tough time getting a job due to his timidness, is convinced by Haru to apply for a position alongside him at Dragon Bank, one of Japan's largest IT companies. During their interviews, the company's board director, Kirika Kokuryuu, takes an interest in Haru and Gaku's contrasting personalities. However, Gaku does not get hired by the company, leading Haru to quit the job on his first day in protest. Nevertheless, they decide to embark on an ambitious plan of making a trillion dollars. In order for their scheme to come to fruition, Haru and Gaku start looking for potential investors, but everyone rejects their extravagant idea. In spite of that, the two soon find themselves getting an offer from Kirika—and with her investment, they might just be able to reach their goal.

Tsukasa Akeuraji always dreamed of becoming a competitive solo figure skater, but starting too late in life meant his ambitions never got off the ground. Now barely scraping by, he takes on an assistant coach job, resigned to a future far from the one he once imagined. Before his first day, Tsukasa meets Inori Yuitsuka, a shy fifth grader sneaking into the rink to practice. Captivated by figure skating, but held back by her mother's overprotectiveness and her own self-doubt, Inori has never been encouraged to pursue her passion until she encounters Tsukasa. Beneath her personality lies great potential, waiting to be unlocked with the right guidance. Moved by Inori's determination to change and reminded of his own struggles, Tsukasa offers to coach and help her chase the dream she has been too afraid to voice. While the road ahead is long and filled with unfamiliar challenges and rival skaters, Inori dedicates herself to the art and strives to one day reach the Olympics and become a medalist.

After contracting hepatitis A, Ezaki Yuuichi has been confined to a hospital, away from his friends and family, much to his displeasure. To relieve his boredom, he has taken to sneaking out of the hospital, usually putting himself on the receiving end of a beating from his nurse. Upon meeting a girl his age also staying in the hospital, he is immediately captivated by her beauty. Akiba Rika's personality is not quite as captivating as her beauty however. In fact, she is rather selfish, moody, and bossy. But as the two spend more time with each other, they become closer, sharing the ordinary joys and trials of a budding teenage romance, even when darkened with impending tragedy—for Rika's condition does not leave her much longer to live.

Kazuna's family has a history of suffering from a disease that creates an uncontrollable vampire-like thirst for blood. Knowing none of this, Kazuna was sent to live with the Eda couple as a child. As the sickness begins to show signs of being present within himself, he comes into contact with his older sister, Chizuna, who has been suffering from it since early childhood. Knowing that the sickness incurs a heavy weight upon those that suffer from it, Chizuna tries to ease her brother's burden, to help him learn to control his urges, but...