The stage is five years after "Borderless", Nao, Kiri, and Kotone have started a new life on their own. One day, a novel written by Kiri will be published under the name of a popular young actress. Kiri is dissatisfied but cannot resist. In addition, "incidents" occur to trace the incidents in the works. They can't believe it's a coincidence, who imitated what and why? As they tried to get to the bottom of the truth, an inescapable tragedy struck them again...
Nakanishi Aruno is disliked and bullied by other Nogizaka46 members because she's different from them. After one of them lock Aruno and tell her to not come back, she decides to come back definitely.
Nao, a high school girl living a self-proclaimed "normal" life, is one day approached by her mysterious classmate Kiri in the school library. Kiri invites Nao to come with her to visit a scene of a murder in Kiri's neighborhood which she's using as inspiration to write a novel. Meanwhile, sisters Haru and Kei, witness their father being beaten by someone on their mountain cottage. The sister flee, only to be chased by the attacker. Kotone works at a coffee shop run by her father after failing the entrance exam for music college. She works with her childhood friend Kazushi and the atmosphere is pleasant. Her younger sister Kanon is worried about Kotone, but spends her days devoted to her band. A mysterious girl stands on her balcony in the rain. What is beyond the gate that looks at? These four stories will intersect, as the boundaries between each girl gradually become borderless. ~~ Adapted from the novel "Borderless" by Tetsuya Honda. (Source: MyDramaList)
Musical featuring members of Nogizaka46 as characters from the Sailor Moon manga and anime franchise. 2019 featured new members playing the lead roles.