Chapter 163

The whirlwind trip across the world leaves both Class 3-E and Korosensei gasping and drained. Reflecting privately, Nagisa realizes he has slowly stopped seeing his teacher as a kill and started viewing him as a devoted educator instead.

During a tutoring session with Sakura Kiyashiki, Nagisa reads the unease that grips her as she anticipates returning to a school where bullying might resume. He presses two fingers to her neck and reassures her, cheered when the gesture visibly restores her confidence. At last, in career counseling, he tells Korosensei that he wants to teach just as his mentor does. Delighted, Korosensei urges him to make the most of his youth while it lasts.

Korosensei and Karasuma then briefly discuss the yearbook, with Karasuma insisting the finished book carry some educational value. Stepping outside, Karasuma reports to his superiors that Korosensei is now alone, and they respond by firing a laser from their newly deployed satellite weapon down onto the campus.

Nagisa admits he now sees Korosensei as a teacher rather than a target and calms Sakura with his read on her fear. He formally declares his wish to become a teacher, winning Korosensei's approval. Karasuma then signals the government, which fires its satellite laser at the campus.

Decision Time is the one hundred sixty-third chapter, a twenty-page entry in Volume 19, School Attendance Time. It follows A Time for Memories and precedes Confusion Time, marking the moment the government's assault finally begins.