Ultimate Annihilation

The End of Ultimate Academy for Gifted Students (才能学園の終わり Saishū gakuen no owari) is an execution featured in Danganronpa V3: Killing Harmony, with Tsumugi Shirogane, Monokuma and the entire academy being executed by Kiibo.

In the end Kiibo committed suicide by destroying himself along with the entire Ultimate Academy for Gifted Students.

Shuichi Saihara, Himiko Yumeno, and Maki Harukawa who were supposed to be executed as well in this execution managed to survive and end the killing game.

Prelude
Due to the unexpected outcome of the last trial, where no one casts their votes; Tsumugi and Monokuma were forced to end Danganronpa and Kiibo was ordered to shut everything down. Because this was an unexpected, Tsumugi hadn't prepared a proper execution and she trusted this work to Kiibo; to execute herself and Monokuma.

Sequence
Launching from the class trial room, Kiibo immediately shot the entire academy randomly with his upgraded laser. His free will finally allowing him to bring down the academy and ending the killing game for good.

In the next scene, Tsumugi cosplayed as Junko Enoshima and immitated her infamous hand waving in The Ultimate Punishment in front of the main school's building. However, she took off her cosplay and displayed her sadness and disappointment through her expression, still waving her hands along with Monokuma. Both of them later were crushed to death by a falling rock.

Following the demise of the mastermind and Monokuma, Kiibo intentionally let Shuichi, Himiko, and Maki survive. After clarifying that the three of them were still alive, Kiibo smiles before self-destructing himself and flying directly into the wall that surrounded the academy, shattering the glass cage and creating an opening to the outside world.