TOOBOE’s new single “GUN POWDER” is locked in as the first opening theme for the TV anime Yuusha no Kuzu(勇者のクズ) / Scum of the Brave, turning the series’ trigger-happy underworld action into an explosive anisong. Here’s a quick guide to the song, the anime, and the upcoming album EVER GREEN.
Explosive OP Theme GUN POWDER Joins Scum of the Brave
“GUN POWDER” lives up to its name: a sharp, nervy rock track built around the idea that even a tiny trigger can blow a story wide open. TOOBOE imagined every little “pull”—from dangerous E3 injections to chance meetings and casual conversations—pushing the plot forward. You can already hear a sneak peek in the new promo video for the anime.
Underground Tokyo Story and Characters of Yuusha no Kuzu
Set in a Tokyo underworld ruled by mafia who became “Demon Kings” through ether enhancement, Yuusha no Kuzu follows freelance “hero” and hitman Yashiro, nicknamed the Grim Reaper, and his self-proclaimed disciple, high school girl Jougamine Aki(城ヶ峰亜希). Their bounty-hunting work, uneasy mentor-pupil bond and constant brush with death make a perfect match for a volatile theme song like “GUN POWDER.”

EVER GREEN Album, Early Digital Release and Live Schedule
The track will also appear on TOOBOE’s major 2nd album EVER GREEN, due out on February 11, 2026. The album comes in a limited edition with Blu-ray and a “Dame Himawari” plush, plus a standard CD-only version. Ahead of that, “GUN POWDER” drops on digital platforms on January 11, so fans can loop the full song before the story really heats up.
TOOBOE is the solo project of creator john, known for handling songwriting, vocals, illustration and more, and already loved by anime fans for “Jouzai,” the episode 4 ending theme of Chainsaw Man. “GUN POWDER” continues that blend of edgy pop and internet-born sensibility.
TV Broadcast Slots and Streaming Info for the Anime
The Scum of the Brave TV anime kicks off on January 10, 2026, airing Saturdays at 24:55 JST on Nippon TV and affiliates for two consecutive cours. AT-X will follow from January 18, and d Anime Store and Hulu will stream new episodes from January 10 at 25:30, with additional platforms joining from January 15. Check the official anime website and your local listings, since times can change by region.
Reasons TOOBOE Fans and Anisong Listeners Should Tune In
Between its grimy Tokyo setting, morally gray “heroes” and chain-reaction storytelling, Yuusha no Kuzu looks made for a volatile, hooky OP like “GUN POWDER.” If you enjoyed TOOBOE’s work on Chainsaw Man, this is an easy next stop: watch the teaser PV on YouTube, mark your calendar for the January broadcast, and consider pre-ordering EVER GREEN via the album page so the song is waiting in your library when it drops.
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