Junko Enjou

Junko Enoshima (Japanese: 江ノ島 盾子, Hepburn: Enoshima Junko) is a fictional character and the overarching antagonist of Spike Chunsoft's Danganronpa series. She is introduced as the mastermind behind the first two games and the true persona of the series mascot Monokuma. In the spin-off game Danganronpa Another Episode: Ultra Despair Girls, she appears via the avatars of Shirokuma and Kurokuma. Junko also serves as the protagonist of the prequel light novel Danganronpa Zero under the identity of the Ultimate Analyst, Ryōko Otonashi (Japanese: 音無 涼子, Hepburn: Otonashi Ryōko) and further appears in the anime Danganronpa 3: The End of Hope's Peak High School: Despair Arc.
A student of Hope's Peak Academy, Junko is the Ultimate Fashionista, a charismatic and hyper-intelligent gyaru fashion model. Alongside her fraternal twin sister and body double Mukuro Ikusaba, she forms the Ultimate Despair, and orchestrates the end of civilization through a movement known as "The Tragedy". In Danganronpa: Trigger Happy Havoc, Junko arranges a killing game between her former classmates to test their metrics for hope and despair, participating alongside Mukuro as "hidden" contestants. Following her death, Junko's consciousness is preserved into an artificial intelligence known as Alter Ego Junko. This AI serves as a central antagonist in Danganronpa 2: Goodbye Despair and Danganronpa Another Episode: Ultra Despair Girls, where she works with Izuru Kamukura to ensure the continuation of her plans.
The identity of Junko is frequently adopted by other characters throughout the franchise. Mukuro Ikusaba poses as her sister in Danganronpa: Trigger Happy Havoc and Danganronpa Zero, while an intended successor seeks to claim her mantle in Danganronpa Another Episode: Ultra Despair Girls. Additionally, the showrunners of the Danganronpa reality television series utilize her likeness in Danganronpa V3: Killing Harmony. The character has also appeared in various manga and musical adaptations of the series.

Biography fallback source: Wikipedia