The First Concert

ARC The First ConcertThe First Concert (ファーストステージ) is the fourth arc of Oshi no Ko manga series. It spans the rest eight chapter of the fourth volume, and it tells the story of Mem-Cho's induction to B-Komachi, and their first concert held in Japan Idol Festival.

Summary
After the TV show, The Beginning of My Love With An Idol, or LoveNow, ended, Minami Kotobuki, Ruby Hoshino, and Frill Shiranui discussed their feelings and thoughts. Aqua, the highlight of the show he was, became a focal point not only for their discussion but for his future and the future of the new B-Komachi group -- partly thanks to Mem-Cho, who advertised the show on their channel. After such, the new group discussed their progress and plans for their next steps as an up-and-coming idol group. Thus, they used the old members' songs as references and practiced for a while. After being offered to participate in the Japan Idol Festival, the girls accepts and choose Kana Arima as their center and leading girl.

On Aqua's end, he sought the aid of Masaya Kaburagi on details regarding his deceased mother. Masaya sees potential in the young Aqua, and the rest of the new B-Komachi group gave him what he wanted -- adding a leg up for the new idol group as well. Because Kana was upset about his relationship with Akane Kurokawa in LoveNow, Aqua disguised as Pieyon to help with B-Komachi's motivation and skill-building amidst the group's practices; Miyako Saitou played a part in such orchestration.

Once the big day came, much anticipation was in the air, as the legacy of the former B-Komachi led to high expectations. A success it was as everyone poured their hearts out.

After acquiring the rights for the Tokyo Blade manga by Abiko Samejima, Sumiaki Raida announced to Kaburagi that a 2.5D stage-play adaptation of the popular manga would be in the works. The purpose of meeting with Kaburagi is that he is well-connected and capable of pulling cast members vital for the play. Kaburagi's assistance, a sizeable budget, materials, partnership with Lala Lai Theatrical Company, and backstage crew all were positive for Raida and the prospects of a successful stage-play. Once the cast members set in stone, Raida was especially ecstatic seeing that Kana and Akane, who were rivals, were a part of the play.

Characters Introduced

 * Sumiaki Raida
 * Mana Suzushiro

Trivia

 * This arc, along with Scandal arc, is the shortest arc of Oshi no Ko manga series so far, covering only 8 chapters.
 * The Japan Idol Festival is based on the Tokyo Idol Festival which is an annual that takes place at Odaiba, the buildings shown in the background throughout this arc also strongly resembles the buildings found in the area such as Daikanransha (which was closed and demolished in 2022), DiverCity and the Fuji TV Wangan Studio.