IDOLiSH7にとっては念願だった冠番組が決まり、お祝いムードになる陸たち。小鳥遊社長はバラエティ番組のMCで才能を発揮した三月の功績が大きいと語る。自分が認められた嬉しさで涙する三月。番組宣伝のための仕事も増えることになり、早速トップアイドル・Re:valeの番組に呼ばれる。大先輩であるRe:valeとの本格的な共演はこれが初めて。挨拶のため、ビビり気味で楽屋を訪れた陸たちに対し、百と千の反応は……!?

ゼロアリーナのこけら落とし公演で、未確定の出演枠にIDOLiSH7を推すと宣言した千。次のライブをゼロアリーナの総支配人が視察することになり、演出を担当する紡はアイディアを求めてゼロアリーナへ出かける。そこで出会ったのは、過去に舞台演出を手掛けていたという一人の紳士だった。ステージに立つアイドルたちへの思いを語る彼の言葉に、心を動かされる紡。それをヒントに舞台構成を仕上げ、遂にライブの幕が上がる――！

ライブは無事に終わったものの、発作を起こしてしまった陸はアンコールに出られなかった。幸いにもそのことはゼロアリーナ総支配人の評価には影響せず、IDOLiSH7はこけら落とし公演への出演を正式にオファーされる。三月やナギは喜ぶが、その一方で体が弱い陸がセンターを続けることへの懸念は残った。回復して気丈に振る舞う陸の姿に、紡はマネージャーとしてどう接するべきなのか思い悩む。そして一織に、ある重大な决意を伝える。

体調が不安定な陸に代わり、一織がIDOLiSH7のセンターを務めることになった。新生・IDOLiSH7は順調な滑り出しを見せ、初めての冠番組『キミと愛なNight！』も三月のMCが好評で、7人の人気は一層高まっていく。

Tenn pays a sudden visit to the IDOLiSH7 dorms. Riku is simultaneously perplexed and delighted, but Tenn has harsh words for him. Later, Yuki, Momo, and Ryunosuke arrive. With members of IDOLiSH7, TRIGGER, and Re:vale at the dorms, the situation gets out of control...?!

Re:vale brings a new offer to the table: for IDOLiSH7 and TRIGGER to appear as surprise guests at Re:vale's fifth anniversary Zero Arena inaugural concert, and for the two groups to perform together as one special group.

Mitsuki is traumatized when he happens to overhear some fans talking about him. Riku is criticized on social media by Iori's fans and begins behaving awkwardly towards him. Though Sougo is worried about the situation, he has his own concerns regarding Tamaki...

While taping a music program, Momo suddenly loses the ability to sing. Unable to determine the cause, the posters for the inaugural concert are vandalized, and uneasiness hangs in the air. Meanwhile, Tsumugi decides to convey her own feelings in an attempt to cheer up Riku and the other members, who have been feeling down.

IDOLiSH7 and TRIGGER begin practicing as a special unit for Re:vale's 5th anniversary concert. While many of the members are off their game, Gaku, Tenn, and Ryunosuke discuss their thoughts, and the individual groups begin to open up to each other.

Momo remains unable to sing. He recounts Re:vale's history to the concerned members of IDOLiSH7. As an indie artist, Yuki worked with a different partner, and Momo was one of their fans.

IDOLiSH7 is accused of appropriating Zero's songs, so Takanashi Production holds a press conference. Nagi volunteers to face the press and explains that he was officially given the rights to the song by composer Haruki Sakura. However, a suspicious man dressed as Zero appears at the press conference, aggravating the scandal.

Filming for the drama Tamaki and Sougo are co-starring in is going well. However, Sougo continues to worry about his encounter with Tamaki's younger sister, which he hasn't been able to tell anyone about. On the final day of the special unit's joint practice, Tamaki is shocked to discover that Sougo couldn't trust him enough to tell him about Aya.

Tamaki and Aya are finally reunited. Tamaki wants the two of them to live together, but Aya informs him that she wants to remain with her new father who has been taking care of her. A surprising figure appears before the dumbfounded group. When they learn of his ambition, IDOLiSH7's feelings are united--

Re:vale prepare to close out the inaugural concert. The IDOLiSH7 and Trigger shuffle units perform the opening act. While watching their juniors perform, Momo and Yuki look back on the past five years they've walked together.