Ultimate Annihilation

The End of Gifted Inmates Academy (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, Shuichi Saihara, Himiko Yumeno, and Maki Harukawa being executed by Kiibo.

Eventually, only the mastermind Tsumugi and Monokuma that were successfully executed, with Kiibo committed suicide at the end.

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

Sequence
Launching from the class trial room, Kiibo immediately shot the entire academy randomly with his upgraded laser. He planned to bring down the academy along with the survivors.

In the next scene, Tsumugi cosplayed as Junko Enoshima and immitate the her infamous hands waving in The Ultimate Punishment. 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 to survive. After clarifying that the three of them were still alive, Kiibo smiles before self-destructing himself, eventually managed to destroy the cage that surrounded the academy.