第 12 集: 少年們為音樂表演做準備，Kouta 找到了自己的目標。
2018年3月24日 播出
Yuu, Shunsuke, Ryo, and Seiichirou follow after Kouta and the friends have a very frank and passionate exchange. Through this, Kouta finally realizes just how he wants to sparkle. The day of the school festival and the musical finally arrives. Everything is set for the boys to tackle the musical's performance. Through their performance on stage they the story of how "I" became "we". (Source: Crunchyroll)