"Nobody" was written by band members Brent Kutzle and Ryan Tedder as well as Joe Henderson, Tyler Spry, and Josh Varnadore.

In a comment on the anime's website, Tedder explained the background of the song:[3]Around the spring of 2023, I had a meeting with the Kaiju No.

8 team, where they showed me some of the footage and storyboards, and from there I analyzed the work and characters and thought about what kind of sound was needed.

I wanted the song to convey a sense of exuberance, fun, and shining moments, and since I was in Japan on business in November 2023, I wrote the lyrics while I was there.

[4] The video shows the band performing the song in a small Karaoke room with clips of Japanese cities and culture intermittent overlayed with visual effects that emulate manga or comic book textures and styles.