LONGMAN Unleashes Energetic 'Underclass HERO' Music Video for 'Gintama: Mr. Ginpachi's Zany Class' Ending Theme

The fall 2025 television anime, Gintama: Mr. Ginpachi's Zany Class, recently released the official music video for its ending theme song, 'Underclass HERO.' This track is performed by the Japanese rock band LONGMAN. The song serves as a vibrant and catchy closer to each episode, complementing the series' blend of comedy and slice-of-life school antics.

LONGMAN's single debuted on October 14, 2025. The accompanying music video showcases the band's distinctive style, with visuals inspired by the anime's classroom environment.

Produced by Bandai Namco Pictures, Gintama: Mr. Ginpachi's Zany Class represents a new chapter for the Gintama franchise. This spin-off reimagines the manga characters in a school setting, featuring Gintoki Sakata as an unconventional teacher. The series' narrative is based on the light novel by Tomohito Ōsaki, with illustrations by Hideaki Sorachi, the creator of the original Gintama manga.

Since its premiere in early October 2025, the anime has received critical acclaim and positive fan reception. It is recognized for its unique comedic approach and its connection to the broader Gintama universe.

LONGMAN’s 'Underclass HERO' resonates with both long-time fans and new viewers, enhancing the overall anime viewing experience. The band's ongoing nationwide tour coincides with the song's popularity, with 'Underclass HERO' being a highlight in live performances. The official music video is available globally on Crunchyroll and YouTube, indicating international interest in both the series and its soundtrack. This collaboration between animation and music establishes Mr. Ginpachi’s Zany Class as a notable project within the 2025 anime season, combining humor, beloved characters, and a distinct musical identity.