Otonablue (Jujutsu Kaisen S2 ED3)

Atarashii Gakko! brings a fever-dream energy to this ending theme, layering dissonant brass stabs over a driving percussive backbone that feels simultaneously retro and unhinged. The production borrows from Showa-era Japanese pop while twisting it through a kaleidoscope of modern hyperpop sensibility — synth textures bubble underneath like something boiling just below the surface. The vocal delivery is the song's defining force: wild, deliberately untamed, swinging between melodic sweetness and almost confrontational shouting, as if the performers are daring the listener to look away. There's a collective, gang-vocal quality that makes the whole thing feel like a ritual rather than a performance. Lyrically, the song orbits themes of growing older while refusing to surrender the chaotic energy of youth — a refusal to "become an adult" in the spiritual sense, even as time marches on. Coming at the tail end of Jujutsu Kaisen's most devastating arc, it functions as a strange kind of catharsis, a burst of irrational joy after grief. You'd reach for this song in moments of productive rebellion — driving too fast on an empty road at midnight, or dancing alone in a kitchen at 2am for no reason at all.