With the ensemble contest behind them, the members of the Kitauji High School concert band now aim to win a gold medal at the national competition. For third-year club president Kumiko Oumae and her friends, it is their last chance before graduation. Filled with anticipation and anxiety, Kumiko worries if she can successfully lead the band. Amid her struggles, Kumiko encounters transfer student Mayu Kuroe. From her gentle demeanor to her talented euphonium skills, Mayu was a member of the Seira Girls' School concert band—a regular at nationals. While Mayu is friendly, Kumiko cannot help but have an indescribable feeling from their meeting. As new members arrive and plans are set in motion, the club, with an insatiable hunger for a gold medal, learns what it truly takes to propel themselves to reach the national level.

From an early age, Haruka Sakura was made an outcast due to his unconventional appearance and lack of social skills. However, the rough treatment turned him into a proficient fighter, which is now the only thing he prides himself on. Starting at Furin High School, where it is rumored that strength is valued over academics, Sakura has only one goal—taking the top spot. Involved in a street brawl the day before his enrollment, Sakura happens to meet a group of his future schoolmates. Instead of the usual rejection, they fight alongside him, demonstrating that what the school actually cares about is protecting the town of Makochi from any harm—hence why the students call themselves Bofurin. Surprised by the support and appreciation of the townspeople, Sakura has a hard time accepting their goodwill. Though unfamiliar with kindness being shown to him, Sakura must learn to push past his discomfort when Bofurin is pitted against formidable enemies. After experiencing the feeling of acceptance, he finds himself fighting for the sake of others for the first time.

Driven by conflicting interest groups, the anti-magic movement is gaining dangerous momentum. Warned by the Yotsuba family, Tatsuya Shiba takes countermeasures to foil the plans of crooked politicians and corrupt journalists. He repels the first attack, which framed First High School as an unofficial venue for military education, but his most formidable enemies have yet to act. If Tatsuya wants to preserve his peaceful life with his sister, Miyuki, he must demonstrate once more that no one in the world can outsmart him.

The bullies at Yoo Hobin's high school are no ordinary trouble-makers: they are NewTubers, budding internet celebrities who force Hobin to partake in humiliating videos and host live-streams in his house. Hobin only manages to stay strong by reminding himself that he needs to work hard to support his hospitalized mother. However, during his classmate Woo Jihyeok's live stream, Hobin completely snaps after a humiliating incident. As a result, the two men engage in a grotesque fistfight that lasts until dawn. The following day, Hobin discovers that the livestream of his fight went viral on NewTube, turning him into a celebrity overnight. After he realizes that making viral videos is a very lucrative endeavor, Hobin agrees to team up with Jihyeok to create a channel that features his martial prowess. However, Hobin needs to become a seasoned fighter and keep his distance from those who seek to use him for his newfound fame, unless he wants a lack of views to become the least of his problems. Thankfully for him, the unexpected discovery of a series of obscure self-learning videos might be just what he needs to survive in the content creation industry.