Classroom (暗殺教室) Opening - Question: Assassination

Introduced the series' unique blend of school life and assassination. It features the famous "bunny hop" dance that became a signature of the show's early marketing. " Jiriki Hongan Revolution " (Self-Reliance Revolution) Episodes: 12–22

The songs are performed by the voice actors of Nagisa, Karma, Kaede, Isogai, and Maehara, giving the openings an authentic "classroom" feel. Introduced the series' unique blend of school life

A catchy pop-rock song with lyrics centered on the "questions" the students have about their mysterious teacher, Koro-sensei . It highlights the deepening bond between the class and their target. "Bye Bye Yesterday" Episodes: 15–25 Introduced the series' unique blend of school life