You don't have to shine to have youth. First-year high school student Uta Komaki loves to sing, but she's extremely shy, timid, and a bit of a coward. She wants to join the light music club for her high school debut, but she's too intimidated by the dazzling presence of the members to submit her application. In her moment of despair, she receives an invitation to join the a cappella club from the president, Airi Kojou... The a cappella club is filled with unique individuals—some might say they're a bit odd. Even if they're not flashy or popular, there's a special kind of youth that connects through their voices, creating something truly unique.

Four slice-of-life omnibus stories. The Rain and a Cat, Soda Ice Cream from the Convenience Store One Sunday, Reki, Langa, and Miya head out to the skatepark as usual when a squall suddenly hits them. They head back to Reki's place and start playing Karuta, a Japanese card game they find!? Becoming Really Serious About Things In the past, Sakurayashiki and Nanjo had spent their high school days in relative obscurity. These two always had butt heads and competed, but what lies ahead for them from all this competition? Morning Routine This story unravels the mystery surrounding Ainosuke and Kikuchi's everyday life. It closes in on their secret moments, crossovers, and a moment beyond that draws closer. Hiromi, Do Your Best! Shadow is an anti-hero at night, but this is his three-part slice-of-life flash story highlighting his noble and kind personality as he works hard at a flower shop during the day.

In a Kaiju-filled Japan, Kafka Hibino works in monster disposal. After reuniting with his childhood friend Mina Ashiro, a rising star in the anti-Kaiju Defense Force, he decides to pursue his abandoned dream of joining the Force... when he suddenly transforms into the powerful "Kaiju No. 8." With help from his junior colleague Reno Ichikawa, Kafka hides his identity while striving towards his life-long dream of passing the Defense Force exam and standing at Mina's side. But when mysterious intelligent Kaiju attack a Defense Force base, Kafka faces a crucial decision in a desperate situation...

The majority of the Matsuno household is comprised of six identical siblings: self-centered leader Osomatsu, manly Karamatsu, voice of reason Choromatsu, cynical Ichimatsu, hyperactive Juushimatsu, and lovable Todomatsu. Despite each one of them being over the age of 20, they are incredibly lazy and have absolutely no motivation to get a job, choosing to live as NEETs instead. In the rare occurrence that they try to look for employment and are somehow able to land an interview, their unique personalities generally lead to their swift rejection. From trying to pick up girlfriends to finding the perfect job, the daily activities of the Matsuno brothers are never dull as they go on all sorts of crazy, and often downright bizarre, adventures. Though they desperately search for a way to improve their social standing, it won't be possible if they can't survive the various challenges that come with being sextuplets!