Despite some students getting behind Nagisa's wish to save Koro-sensei, the other students, including Karma, object to it, feeling their bonds forged through assassination should be followed through to the end. Following Koro-sensei's reccomendation, the students are divided into two teams and pitted against each other in a paintball match to determine whether they should kill Koro-sensei or try to save him, with victory being decided by either total elimination or flag capture. As the match begins, Karma's talent for combat strategy gives the red "kill" team an early advantage over the blue "don't kill" team. However, Karma's unease at Nagisa's seeming absence throughout the battle is realized when Nakamura's squad approaches the decimated blue team's flag and is suddenly eliminated by Nagisa in an instant.