Yumenosaki Academy has been home to the best boy idols of different generations. Holding immense influence over the school, its student council maintains the status quo by enforcing old traditions with an iron fist. Transfer student Anzu winds up attending as the very first member in the production course, making her the sole female student in the entire school. There, she meets Subaru Akehoshi, Hokuto Hidaka, Mao Isara, and Makoto Yuuki—her classmates and members of the idol unit Trickstar. The academy holds Dream Idol Festivals—stage battles that put its students' singing and dancing skills against each other, with the audience voting on the winner. Winning these DreFes guarantees the members of the idol unit various privileges and prestige. However, with the student council intervening and punishing everyone involved in an unsanctioned DreFes, the members of Trickstar find that they can no longer sit around and let it continue. Alongside Anzu as their producer, they plot to become the revolutionaries of the academy.

Despite a rocky start to their relationship, second-year high school students Mao Tsuchiya and Hisashi Ootomo have managed to find a way to coexist in their dorm room for another year. The roommates swear to abide by three simple promises: Mao must refrain from outing Ootomo as gay and having a boyfriend; Ootomo, in turn, must not fall in love with Mao; and the two must respect each other's privacy when one of them needs time to himself. While these are simple asks, the school's film club's new project suddenly puts them at risk. The club's short film for the year is a boys' love story between a class president and a delinquent—a role for which Ootomo is considered the perfect fit. As the principal photographer in charge of composing every scene, Mao oversees all of the intimate moments between the leads, and though he wishes he could deny it, his growing attraction to his roommate is affecting the movie's production. But as things start to intensify—both in the film and in his personal life—Mao is soon forced to confront these complex emotions head-on.

In spite of the mayhem that has been taking place in Ikebukuro, Shinra Kishitani and Celty Sturluson have decided to go on a short trip. Excited to finally be going out with the one he loves, the underground doctor makes it his priority to give Celty his undivided attention, even if it means rejecting phone calls from his good friend Izaya Orihara. However, despite his hopes of having a peaceful holiday, Ikebukuro's various residents continue trying to reach him. Furthermore, just as Shinra begins to enjoy reminiscing about old memories on a carriage ride together with his beloved, Celty starts to notice a strange presence...

From standing in the sun for hours to traveling miles away from home, gorgeous high school student Koizumi stops at nothing to fulfill her desire for ramen. But these previously solo trips soon change when Koizumi's classmate Yuu Oosawa develops an infatuation with her, and begins to join Koizumi uninvitedly on her adventures. As Yuu continues to be shocked by Koizumi's enormous appetite, she learns about the endless variety of ramen from, arguably, its greatest connoisseur ever!