Chapter 167

Short Summary
Both Class 3-E and Korosensei wanted to see each other one more time before the latter's imminent assassination, and the class made that their objective. The class then formulates a plan to reach the mountain for if they would ever escape. However, the final day to act had arrived, and a way to escape had not been found. Just then, Irina Jelavić seemingly arrived to happily greet the class by kissing a few students, but they soon realized she had snuck them a set of Takebayashi's explosives. After silently blowing their way out, Kataoka gratefully asked Irina and Karasuma to come with them, to which the former happily obliged.

Nagisa snuck into his house to put on his Super PE uniform, only to be caught by his mother. Although initially angry Nagisa was planning to head to the mountain, she allowed him to leave if he believed he was making the right decision and not doing anything dangerous. Nagisa assured he would not, before leaping onto a separate rooftop.

The class gathered up, and Itona and Ritsu finished assembling their autonomous battle drone. As Craig Hojo and the Wolfpack observed the students with disdain, Class 3-E commenced their assault on the mountain, with only three hours left to kill Korosensei.

Trivia

 * In a tankobon extra after the end of the chapter, Hiromi Shiota comically notes she would punish Nagisa once he comes home.