The anime series Bullet/Bullet, directed by Sunghoo Park, has revealed that the Korean boyband TWS will perform an insert song titled “N.O.S.A”. This announcement came alongside the release of a new promotional video featuring the song.

Bullet/Bullet is an original net animation (ONA) series created and directed by Sunghoo Park, known for his work on Jujutsu Kaisen. The series is animated by E&H Production and produced by Gaga. It is set to stream exclusively on Disney+’s “Star” brand, with the first eight episodes premiering on July 16, 2025, and the remaining four episodes starting on August 13, 2025. In Japan, the series will also have a two-part theatrical screening, with the first part, “Dangan Shissō-hen” (Bullet Run arc), on July 25, and the second part, “Dangan Kessen-hen” (Bullet Final Battle arc), on August 15.

The anime’s story, which Park spent a decade drafting, is set in a near-future, post-apocalyptic wasteland where civilization has collapsed. It follows a junk shop worker named Gear who teams up with a gambling addict named Shirokuma and a robot with multiple personalities named Qu-0213 to run a “theft business” that reclaims unjustly stolen items. Their lives take a world-changing turn when a mysterious girl named Noa requests their help in stealing an item.

While TWS is performing the insert song, the anime’s opening theme song is “Work Hard” by Chanmina, and the ending theme song is “Glass Door” by Newspeak.