Kyoko Kirigiri

Kyoko Kirigiri is an ultimate student, and a participant in the Hope's Peak Academy Killing Game. She is a former member of class 78th, and is the Ultimate Detective. During the majority of the Hope's Peak Academy killing game, Kyoko's memory was erased. Even without her memories of her talent, Kyoko proved instrumental in ending the game once and for all.

Early Life
Kyoko is the child of Setsuna Uzuru and Jin Kirigiri. After hearing the news of Kyoko's birth, Fuhito Kirigiri (at the time, the current head of the family), Fuhito invited Jin back to the family, solely to make Kyoko his heir. Setsuna had died in the hospital soon after Kyoko's birth, Kyoko's only memory of her mother being her face, pale-white, in a hospital bed. Jin initially refused to give up Kyoko to Fuhito, attempting to raise her with his then boyfriend, Koichi Kizakura. Kyoko grew close to Koichi, seeing him as a parental figure, though Jin was always distant towards her. After living with Jin and Koichi for 7 years, Jin Kirigiri was invited to be the new headmaster of Hope's Peak Academy, and he then left with Koichi to lead the school. With no-one to take care of her, Jin left Kyoko with his father, Fuhito Kirigiri.

Fuhito immeaditely doubled down, rigorously training Kyoko to be a master detective, living up to the Kirigiri name. Fuhito encouraged Kyoko to despise her father, telling Kyoko that he abandoned her in order to pursue his own dreams. Kyoko believed this instantly, choosing to hate her father. While Kyoko grew to love her grandfather, seeing him as the only adult in her life to truly care about her, Fuhito was still an incredibly strict caretaker. His strict rules and desire to make her a detective above all else lead to Kyoko's monotone nature and tendency to repress her emotions. At age 9, Kyoko solved her first case (naming the true culprit in the Griffin Park Planetarium murder case), securing her future as a fixture of the Kirigiri family.

Don't Hide From The Truth
At age 13, Kyoko was sent to Russia to investigate the dissappearance of Yusuke Kirigiri. However, upon arriving at the facility, she was knocked out. Upon coming to, Kyoko met three other detectives in training working under the Kirigiri family. One of which named Yui Samidare. While the detectives initially suspected eachother, Yui and Kyoko solved the case together, beginning to unravel a larger conspiracy.

As the two solved the case, they grew closer. In the process, Kyoko discovered the identity and location of the man who killed Yui's sister, and proposed the case to her. The two arrived at his house, though when Yui saw him, she flew into a rage. In the middle of the struggle, the man's lit cigarette set the house ablaze. Kyoko, despite her best efforts to save Yui, left the situation with burns all over her hands, arms, and torso, and the fire took Yui and the suspect. Following Yui's death, any semblance of emotion that Kyoko mantained died with her, leaving Kyoko a shell of what emotion Yui brought to her life.

Reload Your Revolver
Soon after the beginning of the Killing Game, Kyoko immeaditly began fighting Monokuma on any and all game related events. When confronted with the motive videos, Kyoko received one involving her father, Jin Kirigiri. However, due to her amnesia, considerable parts of the video were cut or blacked out. Upon the body discovery of Byakuya Togami, Kyoko led the investigative efforts, and was a key player in discovering the culprit, Kotomi Ikuta.

Eye for an Eye
Kyoko accompanied Aoi Asahina and Makoto Naegi to the latter's trial helmed by Kyosuke Munakata. Kyoko stopped Munakata from attacking Makoto, insulting him in the process. Similarly to her friends, Kyoko immeaditly panicked upon Monokuma's appearance and the beginning of the Final Killing Game. Kyoko, as apart of team Hope, Kyoko helped keep Makoto and Aoi safe. In the midst, Kyoko made an agreement with the others to not kill unless absolutely necessary. When team Hope was attacked by Team Old Timers, Kyoko

Celestia Ludenberg
At the start of the Hope's Peak Academy Killing Game, Kyoko and Celestia held an antagonistic rivalry, seeing eachother as enemies and threats in the Killing Game. However, as the game continued, Celeste and Kyoko grew closer. Following the third trial, Kyoko and Celeste grew to an understanding towards eachother, one that evuntally turned romantic. The two survived the killing game together, and started a relationship following the ending of the game.