 is a song recorded by Japanese idol girl group Nogizaka46. It was released as the group's thirty-first single on December 7, 2022, through N46Div. and Sony Music Records. First-generation member Asuka Saitō served as her eighth center position of the performance since the latest 2019 single "Sing Out!" and participated as her last single from the group. Its accompanying music video premiered ahead on November 19. Commercially, "Koko ni wa Nai Mono" reached number one on the Oricon Singles Chart and number two on the "Billboard" Japan Hot 100, and was certified million by Recording Industry Association of Japan (RIAJ).
Background and release.
On October 31, 2022, at their show "Nogizaka Under Construction", Nogizaka46 announced their thirty-first single, scheduled for release on December 7 on four limited CD+Blu-ray, a regular CD, and special digital extended play. On November 4, Asuka Saitō, a first-generation member, announced her graduation (leaving) from the group via her official blog, stated that she plans to end up her group's activities in December 2022 and hold her graduation concert next year. The next day, she and the group held live streaming via the YouTube channel "Nogizaka Streaming Now" at 19:30 JST, revealed the song title "Koko ni wa Nai Mono", and "senbatsu" members, including Saitō who is in charge of the center position. Front and back cover artworks for all physical editions of "Koko ni wa Nai Mono", taken by Toshiaki Kitaoka, was revealed on November 9, expressing multiple exposure that superimposes the members and various events related to Saitō. All Blu-rays included the group's performances at Midsummer National Tour 2022, which was held between August 29 and 31 at Meiji Jingu Stadium, Tokyo.
Music video.
An accompanying music video for "Koko ni wa Nai Mono" was uploaded via Nogizaka46's official YouTube channel on November 19, 2022. It was directed by and shot from late October to early November. The choreography scene was filmed on the rooftop of building in Roppongi Hills, while Saitō's solo part was on Tokyo Metro Ginza Line Shibuya Station's platform. The story depicts Saitō, who is an employee at a clothes shop, chasing her dream of becoming a designer, even though she felt that it was impossible.
B-sides.
The music video for "under" members' track "Warui Seibun", which served Reno Nakamura as the center position, was uploaded on November 22. It was directed by , and shot at Tipstar Dome, a velodrome in Chiba. The music video expresses the theme of chasing two ingredients; a bad one and a gentle one. The next is fifth-generation "17 Funkan", which the center position is Sakura Kawasaki, released on December 1. Shot at a school in Ibaraki, the music video is directed by , showing the members trying to restart the clock that has stopped at 5:17 with gears containing their own thoughts. Saitō's solo track "Kore kara" music video was uploaded on December 7, directed by . It shows Saitō flashbacking her past, present, and future. The music video of "Ato no Matsuri", self-made by the members who sing the song, was released on December 10.
Commercial performance.
On the release day, Soundscan Japan reported that the CD single "Koko ni wa Nai Mono" sold over 643,390 copies on its "flying get" day, becoming their highest single physical sales since COVID-19 pandemic, surpassed 542,558 copies of the previous single "Suki to Iu no wa Rock da ze!". "Koko ni wa Nai Mono" entered "Billboard Japan" Hot 100 at number two in the chart issue dated December 14, 2022, behind only Official Hige Dandism's "". In its first week, the single earned 830,384 CD sales, debuting atop the Top Singles Sales chart; and 11,486 downloads, peaked at number four on the Download Songs.
"Koko ni wa Nai Mono" debuted at number one Oricon Singles Chart in the chart issue dated December 19, 2022, becoming the group's thirty consecutive number-one single since their 2012 single "Oide Shampoo", and the second most consecutive number-one singles in Japan, behind only AKB48 with 47 singles at that time. The single sold 654,000 copies in its first week, making the group monopolizing the entire top three the biggest single sales week by a female act in 2022–"Koko ni wa Nai Mono", "Suki to Iu no wa Rock da ze!" (577,000 copies), and "Actually... (463,000 copies). "Koko ni wa Nai Mono" was certified million for physical shipments by Recording Industry Association of Japan (RIAJ) on February 10; the first in three years since the 25th single "Shiawase no Hogoshoku".
Live performances.
On November 4, 2022, Nogizaka46 gave the debut performance of "Koko ni wa Nai Mono" through their YouTube channel "Nogizaka Streaming Now". In the beginning, Saitō, wearing the long white dress, appeared alone on the rooftop of to greet fans. Then, the other members, who also wore the same as Saitō, appeared later. Afterwards, the group performed the song at several Japanese music shows, such as "2022 Best Hits Kayosai" on November 11, ' on November 23, ' on November 26, ' on December 3, as a medley with their 2018 single "Synchronicity", "2022 FNS Music Festival" on December 7, alongside "Jin Jin Jingle Bell" collaborated with Chisato Moritaka, "CDTV Live! Live! Christmas 4-Hour Special" on December 17, the six-hour special "Music Station Ultra Super Live 2022" on December 23, and ', along with their 17th single "Influencer", on December 28.
Participating members.
The eighteen members of Nogizaka46 were selected to be participating members ("senbatsu") for "Koko ni wa Nai Mono", and eleven members for "fukujin" (first and second-row members). The first-generation member Asuka Saitō was chosen as a center position due to her graduation from the group. The fourth-generation Runa Hayashi was selected for "senbatsu" for the first time, while the third-generation Tamami Sakaguchi since 2019 single "Sing Out!", and the fourth-generation Seira Hayakawa since 2022 single "Actually...". 
Track listing.
All lyrics are written by Yasushi Akimoto, except the off-vocal tracks.
Charts.
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References.
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