Singer-songwriter Kenshi Yonezu , who performs the theme song "IRIS OUT" for the animated film " Chainsaw Man Chainsaw Man : Reze Arc," based on the popular manga by Tatsuki Fujimoto , has released an archived video of his performance on the 76th NHK Kohaku Uta Gassen, which aired on New Year's Eve in 2025. The video of Yonezu's first performance of "IRIS OUT" was released on NHK's official YouTube channel for a limited time of one week, and exceeded 10 million views in six days. While many are sad to see it end, the video has now been archived and released on Yonezu's official YouTube channel.
The stage of the 76th NHK Kohaku Uta Gassen attracted much attention, with a spectacular performance by a total of 100 people, including a guest appearance by the seven-member girl group HANA and performances such as "Shark Ride."
Footage from the event "Chainsaw Man: Reze The Movie Special Fireworks - IRIS OUT / JANE DOE," held on December 20, 2025, has also been released on YouTube. The fireworks event was held to commemorate the success of "Chainsaw Man: Reze," the theme song "IRIS OUT," and the ending theme "JANE DOE" by Yonezu and Hikaru Utada. A special musical fireworks display was launched while "IRIS OUT" and "JANE DOE" were playing. The released footage features special frames of Denji and Reze, along with fireworks captured from various angles. Kikunosuke Toya, who voices Denji, is in charge of narration.
"Chainsaw Man" is a dark hero action story that follows Denji, a boy possessed by a demon, as he works as a devil hunter. Part 1 was serialized in "Weekly Shonen Jump" (Shueisha) from December 2018 to December 2020. Part 2 has been serialized on Shueisha's manga app "Shonen Jump +" since July 2022. The total number of copies of the comics published has exceeded 34 million.
The "Reze Arc" is the story of Reze and the main character, Denji, who also appeared at the end of the TV anime that aired from October to December 2022, and became a hot topic. While Denji is excited about a date with his crush, Makima, he takes shelter from the rain and meets Reze, a young girl who works at a cafe. The film is directed by Tatsuya Yoshihara, who served as the action director for the TV anime, and produced by MAPPA. It was released on September 19, 2025, and has been a huge hit, grossing over 10 billion yen. There is also talk of a sequel to "Reze Arc," titled "Chainsaw Man: Assassin Arc."
