This episode cements Terasaka's redemption arc, showing his growth into a protective, if gruff, classmate who understands the weight of their mission.
Fueled by rage at Takaoka's cruelty, Nagisa initially loses his composure, picking up a real knife with genuine intent to kill. It is Ryoma Terasaka —a character once known only as a bully—who snaps Nagisa out of his bloodlust by throwing a stun gun at him. Terasaka reminds him that a real assassination should not be a "murder," but a professional act that doesn't ruin the assassin's own life. Ansatsu Kyoushitsu Episode 22
The season concludes on a hopeful note, with Class 3-E returning to their school life, knowing they have a second semester to complete their impossible task: killing their teacher before he destroys the world. This episode cements Terasaka's redemption arc, showing his