
天王寺璃奈
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Rina Tennouji joined the Nijigasaki High School Idol Club as a first-year with a secret: she is actually quite pretty, but she is too shy to let anyone see her face. During practice and everyday club life she hides behind a handmade sign called the "Rina-chan board," and during live performances she wears a headset monitor instead, using technology to keep her identity covered while she still gets to perform.
She struggles to put her feelings into words and often freezes up around new people, but underneath that nervousness she is caring and works hard behind the scenes, especially on the technical gadgets the club relies on for its shows. Ai Miyashita becomes her very first real friend in the club, and that friendship is what finally starts to pull Rina out of her shell and helps her open up to the rest of the group.
Rina later forms a subunit called Qu4rtz together with Kasumi Nakasu and Kanata Konoe, among others, where her technical skill and quiet dedication find a place to shine even without her ever having to show her face. Her journey through the club is less about becoming the center of attention and more about learning that she doesn't have to hide everything about herself to be accepted by the people around her.
On screen

This is the middle film of the three movies that close out Sunrise's Nijigasaki High School Idol Club anime. It opened in Japanese theaters on November 7, 2025, more than a year after the first part. Tomoyuki Kawamura again directed it, and Jin Tanaka again wrote the script. It later played in other countries too, such as the Philippines and South Korea. Nijigasaki is a large high school in Odaiba, Tokyo. Its idol club is known for letting each member shine on her own. School idols are students who sing and dance on stage for their school. Yu Takasaki, the club's manager, supports them all and writes songs for them. The film happens during the same stretch of time as Part 1. While one group of six went south to Okinawa, a second group goes on its own tour. The School Idol Grand Prix, a national contest to find the most popular school idols, is going on. This time the spotlight is on Karin Asaka, Ai Miyashita, Setsuna Yuki, Rina Tennoji, Shioriko Mifune, and Mia Taylor. They travel through Kansai, the region of western Japan around Kyoto, Osaka, and Kobe, and perform in those three big cities. Two members get personal stories here. Mia gets a surprise when her older sister, Chloe Taylor, shows up without warning. Chloe is a new character, and her visit brings back parts of Mia's past. Setsuna also faces a hard question. Her real name is Nana Nakagawa, and Setsuna is the perfect idol self she shows on stage. Living as two people is not easy, and she has to deal with the gap between them. The film keeps the series' light, friendly tone, with sightseeing, songs, and close friendships. It also gives older fans more time with members who did not lead the first film. Karin and Ai, who sing together as the duo DiverDiva, are part of the trip, as are Shioriko and Mia, who joined in season 2 with Lanzhu. The Japanese cast returns, including Miyu Kubota as Karin, Natsumi Murakami as Ai, Coco Hayashi as Setsuna, Chiemi Tanaka as Rina, Moeka Koizumi as Shioriko, and Shu Uchida as Mia. A third and last film was announced to finish the story.
Cast
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