About the song
"Hajimaru no wa, Sayonara" is a 2011 J-Pop song by ON/OFF and the second opening theme for the 2011 anime Beelzebub (べるぜバブ). It accompanied the television series produced by Pierrot Plus, connecting the band's polished pop sound to one of the show's main weekly themes.
The track is built in a concise J-Pop style, moving at a brisk pace with a bright arrangement and clear vocal delivery. Its verses keep a light forward motion, while the chorus opens wider and more emphatically, giving the song an energetic but controlled profile suited to a recurring television opening.
Within Beelzebub, the song's upbeat momentum fits a series that mixes delinquent-school chaos with supernatural comedy around Oga and Baby Beel. Rather than leaning into darkness, it frames the anime with a cleaner, more buoyant tone, matching the contrast between street brawls, demonic elements, and the fast comic pace established by the story.
More from this anime
Keep listening to openings and endings from Beelzebub
