IDOLiSH7 is set to hold a debut anniversary tour. Along with TRIGGER and Re:vale, all three groups are attracting a lot of attention in the idol industry. Their members attend the Akebono TV 50th anniversary party.

Mitsuki and Nagi learn that Yamato has a secret based on his behavior at the party. Rather than being troubled by the secret itself, Nagi can't accept that Yamato is closing himself off from his friends. Yamato himself encounters his first acting wall at the filming location of his movie...

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An argument leads Mitsuki, Yamato, and Iori to leave the dorm. Iori and Mitsuki stay at Momo's place, while Yamato stays at Yuki's. Riku and the other boys left at the dorm feel increasingly sad to see their groupmates scattered.

All seven members of IDOLiSH7 meet for the first time in a while at the studio. The recording session goes smoothly, but the other members anxiously watch the exchange between Mitsuki and Yamato. Sogo attempts to convince them to come back to the dorm, but when they refuse, he is at a loss.

Momo gets caught up in Ryo's scheme to expose Yamato's father Chiba Shizuo. When Yamato returns to the dorm, a delighted Nagi tells everyone that Yamato's first confession will be held that night, and the members of TRIGGER and Re:vale gather at the dorm.

The members of IDOLiSH7 cheerfully head to work. Sogo encounters Torao at the TV station. As sons whose families run major corporations, they've previously met. Meanwhile, at Iori and Tamaki's school, transfer student Isumi Haruka takes a confrontational attitude towards them.

Banri describes how he and Yuki met to the members of IDOLiSH7 and Tsumugi. During high school, they developed an interest in each other's songs, and eventually began making music together. Yuki named the band they started together "Re:vale."

Moved by Re:vale's concert, Momo writes a fan letter describing how "Our Incomplete Selves" made him feel. Banri and Yuki are touched by the letter, which encourages them to continue making music. Five years after the formation of their band, they're approached by a man named Kujo who offers to help them debut.

IDOLiSH7 are selected to be personalities for the 24-hour program "Friends Day" along with Re:vale and TRIGGER. On the day of the production meeting, their 24-hour training camp to write a theme song for the program suddenly begins.

With Re:vale composing the music, TRIGGER designing the choreography, and IDOLiSH7 designing costumes, through the combined efforts of all three groups, they barely manage to complete a song by the morning of their 24-hour theme song production training camp. Meanwhile, Ryo meets with Haruka, Toma, Minami, and Torao in his apartment.

Thorvaldur, a man claiming to be "Nagi's otaku friend," visits the dorm. He says he's worried about the dorm's security, but Riku and the other members fail to understand his true intentions. Meanwhile, media outlets report that Ryunosuke and popular singer Hanamaki Sumire are madly in love.

In order to prove Ryunosuke's innocence, Mitsuki, Nagi, and Gaku go to negotiate directly with Ryo. Yamato and Tenn attempt to persuade Sumire, but they fail to change her mind. Anesagi anxiously tells Tsumugi and Okazaki that she's concerned there's still more to come...