Ever since he published a picture that sparked a wave of online harassment, freelance photographer Kouya Madoka has lost everything: his wife Saeko Yukihira, his confidence, and his courage to photograph people. However, years later, a job offer introduces him to the exhilarating world of Formula 4 (F4). A single fierce battle between the amateur drivers in the junior category of open-wheel car racing becomes enough to make Madoka unable to put his camera down. When Komaki Motors' Haruka Asahina bursts into tears on the track, Madoka manages to capture this vulnerable moment. This photo eventually leads Madoka to an impulsive decision: he will help sponsor both the Komaki team and Haruka himself. But the unreasonable costs of the sport quickly cause Madoka to reassess his ambitions, and he seeks different ways to support the severely underfunded F4 team. Despite the uphill battle, Madoka's determination for Haruka to succeed may be the trigger that can propel the young driver straight to the top.

After his girlfriend Yuuko breaks up with him, Miyu Samura's luck is at an all-time low. But one day several months later, she reappears and gives Miyu a toy poodle she supposedly cannot take care of. Miyu's knowledge of dogs is nonexistent, and the puppy's rowdiness leaves him in danger of being evicted from his own home. When Miyu decides to take the puppy on a walk, he has a chance encounter with professional dog trainer Shinichirou Niwa and Niwa's well-behaved standard poodle Ourson. In just a matter of minutes, Niwa not only corrects the attitude of Miyu's dog, but also gives Miyu himself stern advice on how to treat his pet properly. Amazed by Niwa's techniques, Miyu decides to quit his job in order to become the trainer's assistant; however, Niwa is not as skillful in dealing with humans as he is with their canine companions. Even so, Miyu refuses to give up on Niwa and his failing business.

From a young age, Akemitsu Akagami was taught by his father that people can never live alone. But underneath the seemingly prudent advice lies a truth that corrupts it—sons of the Akagami lineage are infamous for being heinous playboys. Determined to clear the notoriety of his family name, Akemitsu keeps his distance from girls throughout his life, only to become a victim of his bloodline's instincts, as he falls in love at first sight. In a last-ditch effort to rid himself of these desires, Akemitsu travels to a nearby temple in hopes of receiving Buddhist training. However, chaos ensues when the girl he had fallen for greets him at the door. After the commotion settles, he discovers the temple is actually a nunnery from which his father had borrowed millions before fleeing. Now working at the nunnery to repay the outstanding debts, Akemitsu tries his best to compose himself and stay celibate while being surrounded by lovely girls of all kinds.

Kaede Komura is in love. After being seated next to the airheaded Ai Mie for the past three days, Komura cannot help but be attracted to his bespectacled classmate. Although he has yet to have a proper conversation with Mie, Komura dreams of the day when she will look his way. One day, Komura notices that his seatmate is not wearing her glasses, learning by questioning Mie that she forgot them and has a tendency of doing so. When he sees her struggle, a concerned Komura takes it upon himself to help his crush. As the boy offers his assistance to Mie day by day, her reasons for constantly losing her glasses slowly evolve from the answer she initially gave.