is a Japanese YouTuber, radio personality, and actress, represented by Sony Music Entertainment Japan. Focusing on video games and anime, she often appears in gaming-related events and television shows and was a voice actress for ' (2021).
Nibu began her career as a member of the girl group Hinatazaka46 (formerly Hiragana Keyakizaka46) from 2017 to 2024, and was the lead performer of the group's single "One Choice" (2023). She also hosts Akari Nibu Happy Caravan on TBS Radio.
Nibu considered becoming an idol after listening to the Keyakizaka46 song "Silent Majority" and joined the audition for Hiragana Keyakizaka46, which was a subgroup of Keyakizaka46. On August 15, 2017, she was publicly introduced as a second generation member of Hiragana Keyakizaka46. The subgroup was spun off and rebranded into Hinatazaka46 in March 2019.
Nibu is a fan of shà Ânen manga, particularly Dragon Ball and The Promised Neverland. In 2018, she guested in an Animax special feature to commemorate the release of '.
Nibu and fellow Hinatazaka46 members Miku Kanemura and Miho Watanabe were voice actresses for the animated miniseries adaptation of the character Pickles the Frog, aired in October 2020. She played supporting roles in the Hinatazaka46 drama series Dasada (2020) and Koeharu! (2021).
Nibu made her feature film voice acting debut in 2021's '. Despite her inexperience, executive director Junichi Fujisaku remarked that he treated her "equally" to the other voice actors, while co-star Ayana Taketatsu commented that her performance did not "feel like that of a first-timer". Nibu herself cited Koeharu!, in which she portrayed an aspiring voice actress, as an influence; Koichi Yamadera, who portrayed the school principal in that drama, was also part of the Deemo cast.
In April 2022, Nibu became the voice of main character Mami in the animated shorts miniseries (four minutes per episode) , aired as a segment of the TV Asahi variety show and also released on YouTube. It was based on a one-shot manga titled Mameo, with original concept by her and written and illustrated by mangaka in May 2021 on the variety show on the same network.
Nibu's first photobook was released on July 26, 2022, published by Gentosha. Titled , the photos were taken throughout 2021, with summer pictures taken in the Setouchi region and winter pictures in the Aomori Prefecture. The book sold 46,000 copies in its release week and placed first on the weekly Oricon photobook chart and second on the general book chart.
Nibu is an avid gamer and has guested in events such as the "Sony Creative Cup featuring Fortnite" and participated in "The Gaming Days Valorant Series", a competitive gaming event between entertainers and professional gamers, in 2022. She co-hosted the esports show Choten on TV Tokyo and is a recurring guest on Hiroiki Ariyoshi's gaming show Ariyoshieeeee!
Nibu served as the title song center (lead performer) for Hinatazaka46's ninth single "One Choice", released on April 19, 2023.
Nibu's first two live-action feature films are the 2024 Shinji Muroi duology, continuations of the long-running Bayside Shakedown detective series. Producer Chihiro Kameyama and screenwriter Ryoichi Kimizuka considered casting her after watching her appearances on a video gaming television show, while director Katsuyuki Motohiro remarked that her experience as an idol contributed to her "nuanced" performance and ability to respond well to his "interesting" direction.
On August 6, 2024, Nibu announced that she would leave Hinatazaka46 after the promotions for the twelfth single, which would be released on September 18, have concluded, citing persistent lower back pain as the reason. Her "graduation" ceremony took place over two days at the Pia Arena MM, with a competitive gaming event, or "Game Day", on November 30, featuring professional esports teams Zeta Division and Crazy Raccoon, and a concert on December 1, the "Live Day". Her final concert with the group was on December 26 at the Tokyo Dome, the final leg of that year's national "Happy Magical Tour". She continues to be represented by Hinatazaka46's management agency, Seed & Flower, after her departure.
In April 2025, Nibu launched her official website and YouTube channel, primarily focused on gaming. She also started her solo radio program, Akari Nibu Happy Caravan, on TBS Radio the same month.
Nibu would play the lead role in , an intermission drama miniseries for the live sketch comedy show "Conton vol.8", to be performed on February 12âÂÂ15 at the Tokyo Sà Âgetsu Hall and featuring fellow former Hinatazaka46 member Miho Watanabe.
Nibu was born in Tochigi Prefecture and lived in Gunma Prefecture until she was eight years old, and currently lives in Saitama Prefecture. She has two older brothers. She holds a third dan rank in kendo and took part in prefectural tournaments when she was in middle school.
Nibu is a fan of Aimyon. She has attended Aimyon's concert and received a signed album from her.
Nibu has participated in all Hinatazaka46 title songs and was the center (lead performer) for their ninth single, "One Choice". Other notable appearances include: