Sho Yonashiro

暴走族「東京狛江愚連隊」特攻隊長として暴れまくり、かつては「狛江の狂犬」と恐れられた伝説の超不良・井口達也（倉 悠貴）が少年院から出所した。達也は、地元から遠く離れた西千葉の叔父叔母に引き取られ、更生を目標に焼肉店「三塁」で働きながらの生活を始める。勿論、次喧嘩をすれば即アウトだ。が！？出所初日に、リーゼントの巨漢、暴走族「斬人」副総長の安倍 要（⽔上恒司）とタイマンで喧嘩をしてしまう…。少年院に戻りたくない達也と、負けたことを知られたくない要は、この喧嘩を秘密にすることで合意、ふたりは交流を深めてゆく。この出会いから達也の壮絶な更生生活が始まってゆく──。

The documentary covers the first two years of JO1, an 11-member Japanese boy band formed from the audition television program Produce 101 Japan. The group was promised a spectacular career, but they were not confident they could make it. Selected based on votes by viewers, each member of JO1 has different experience in performing, including members who had never taken any vocal or dance lessons before. Moreover, the COVID-19 pandemic hit the world not long after the release of their debut single, Protostar, on March 4, 2020, and forced them to restrict their activities. Despite these difficulties, JO1 grew through daily vocal and dance lessons, promotional activities, and program recording. The film closely follows the group from the early stages of their debut to their long-awaited first live concert with an audience, titled 2021 JO1 Live "Open the Door", in November 2021.