After training for their mission, Nagisa and Karma are chosen as the two pilots to be sent into space. With everyone's efforts, Nagisa and Karma, along with Ritsu, manage to sneak aboard the rocket in place of some dummies as it lifts off into space. Arriving at the space station, the pair manage to convince the crew to share their data before returning safely to Earth. Upon inspecting the data, the students learn that with the help of a drug, the chance of Koro-sensei actually exploding at the end of March is less than 1%. Nonetheless, the students agree to continue their assassination attempts until graduation.