The First Concert

The 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.

Chapters

 * Chapter 33: Motivation (モチベーション)
 * Chapter 34: Lead (センター)
 * Chapter 35: Sense of Responsibility (責任感)
 * Chapter 36: The Night Before (前夜)
 * Chapter 37: Pressure (プレッシャー)
 * Chapter 38: Fan of the Entire Group (箱推し)
 * Chapter 39: Just a Little Fun Job (ちょっと楽しいお仕事)
 * Chapter 40: Sore Loser (負けず嫌い)

Characters

 * Aquamarine Hoshino
 * Ruby Hoshino
 * Miyako Saitou
 * Kana Arima
 * Mem-Cho
 * Akane Kurokawa
 * Pieyon

Introduced

 * Raida Sumiaki
 * Mana Suzushiro