Assassination Classroom Opening 1-2-3-4 [full] (2026)

The soundtrack for Assassination Classroom (Ansatsu Kyoushitsu) is unique because all four main openings are performed by (Class 3-E Song Unit), a group composed of the voice actors for Nagisa, Karma, Kayano, Isogai, and Maehara. Assassination Classroom Opening Guide Song Title Key Themes 1 "Seishun Satsubatsuron" (Youth Savage Theory) S1 (Ep 1–11)

Focuses on the "savagery" of youth and the students' initial struggle to prove their existence through the assassination mission. "Jiriki Hongan Revolution" (Self-Help Revolution) S1 (Ep 12–22) Assassination Classroom OPENING 1-2-3-4 [FULL]

A bittersweet finale focused on the passing of time, graduation, and the inevitable "goodbye" to their teacher. Highlights the shift toward self-reliance and the students'

Highlights the shift toward self-reliance and the students' growing bond with Koro-sensei during the Island Arc. "QUESTION" S2 (Ep 1–14) Seishun Satsubatsuron - Assassination Classroom Wiki

Explores the internal questions students face regarding their future, their teacher's past, and the true meaning of "killing". "Bye Bye YESTERDAY" S2 (Ep 15–25)

The openings evolve from high-energy, chaotic anthems about the "weirdness" of their situation to more melodic and emotional tracks as the series approaches its conclusion. Seishun Satsubatsuron - Assassination Classroom Wiki