暗殺教室 18 [Ansatsu Kyōshitsu 18]

Nagisa and Karma undertake a risky mission involving a space station to gather information about their teacher and the threat he represents. The trip briefly throws the class into a bigger conflict, while new dangers and final-villain developments begin to surface.

Back on earth, the story slows into holiday and school-life material: Valentine’s Day, chocolates, career choices, and high school entrance exams. Students reflect on their futures, their feelings become more visible, and several relationships shift or deepen.

As the deadline for graduation and the assassination plan approaches, the volume acts as a bridge into the endgame. It balances comedy, romance, and dread while setting up the final conflicts and asking what happens to everyone after the classroom era ends.