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As such, it is considered to be incomplete regarding the information available.
The article below is based on non-localized content only available in Japanese.
Danganronpa/Zero (ダンガンロンパ/ゼロ) is a light novel that serves as a prequel to Danganronpa: Trigger Happy Havoc, featuring events between Danganronpa 3: The End of Hope's Peak Academy - Side: Despair and the game. There are two known volumes, which were written by the creator of the series, Kazutaka Kodaka.
Due to her constant loss of short and long-term memories, Ryōko has very little interest in the world around her except for Yasuke, who gives her regular treatment. Yasuke, on the other hand, appears very stressed by her and the school's situation.
A month after The Tragedy of Hope's Peak Academy, the school is full of unrest and secrets, with many people attempting to find out what truly happened and who is to blame. Despite not wanting any of it, Ryōko is connected to the incident and soon gets caught up in its aftermath, learning more and more about what happened.
| Ryōko Otonashi|
|She is the main protagonist of this novel. She suffers from constant memory losses and as a result has to carry a notebook. She gets caught up in the aftermath of The Tragedy of Hope's Peak Academy. She holds the title of Super High School Level Analyst (超高校級の「分析力」), a fact she cannot remember.|
| Yasuke Matsuda|
|A student of Hope's Peak Academy who is in charge of school's Neurology lab and Ryōko's treatment. He holds the title of Ultimate Neurologist (超高校級の「神経学者」) and as a result he is very much trusted by the school.|
| Yūto Kamishiro|
|A student of Hope's Peak Academy who investigates The Tragedy of Hope's Peak Academy and its culprit. He makes a deal with Ryōko. He holds the title of Super High School Level Agent (超高校級の「諜報員」).|
| Kyoko Kirigiri|
|She is a student attending Hope's Peak Academy who is investigating the mystery behind Izuru Kamukura and The Tragedy of Hope's Peak Academy. She holds the title of Super High School Level Detective (超高校級の「探偵」).|
| Isshiki Madarai|
|He is a student of Hope's Peak Academy who worked for the Student Council, who were killed in the school's Tragedy. He now investigates the incident and is specifically after Junko Enoshima. He holds the title of Super High School Level Bodyguard (超高校級の「ボディーガード」).|
| Jin Kirigiri|
|He is the Headmaster of Hope's Peak Academy. He is also Kyoko's father, and the one who asked her to investigate the school's incident.|
| Sōshun Murasame|
|He is a student of Hope's Peak Academy and also a member of Hope's Peak Academy's Student Council. He is the only survivor of the The Tragedy of Hope's Peak Academy, but he is supposedly comatose. He holds the title of Super High School Level Student Council President (超高校級の「生徒会長」).|
| Junko Enoshima|
|She is the main antagonist of this novel. She is the one responsible for The Tragedy of Hope's Peak Academy. She holds the title of Super High School Level Gyaru (超高校級の「ギャル」).|
| Mukuro Ikusaba|
|She is one of the antagonists and Junko's older sister. She holds the title of Super High School Level Soldier (超高校級の「軍人」).|
The Steering committee
| The Steering Committee|
|Scientists who hold the true power in Hope's Peak Academy. They hid the school's Tragedy for the sake of their image and have indirectly caused many of the school's problems.|
| Izuru Kamukura|
|He is a mysterious student in the school, known by name only by few and akin to a ghost story. He is the supposed culprit behind The Tragedy of Hope's Peak Academy. His location is unknown.|
| Student Council|
|They were students from Hope's Peak Academy's Main Course. They participated in the killing game which was The Tragedy of Hope's Peak Academy. All the members were murdered one by one, with only Sōshun and Izuru surviving the killing game.|
The Reserve Course
|The Reserve Course|
|The Reserve Course students, who began rioting as a response to the school's Tragedy. They created the Parade and a secret society, who repeatedly watch footage of the incident.|
| Makoto Naegi|
|He is a student attending Hope's Peak Academy. He is mentioned as Mukuro's classmate. He holds the title of Super High School Level Good Luck (超高校級の「幸運」) .|
| Chihiro Fujisaki|
|A student who is only mentioned anonymously. She is a student attending Hope's Peak Academy. She would sometimes spy on the Academy's servers for Yūto. She holds the title of Super High School Level Programmer (超高校級の「プログラマー」).|
| Teruteru Hanamura|
|A student who is only mentioned anonymously. He helps out at one of the school's many cafeterias and his food is considered extremely addictive. He holds the title of Super High School Level Cook (超高校級の「料理人」).|
- It is the first novel released in the Danganronpa franchise.
- Several characters cameo in Danganronpa 3: The End of Hope's Peak Academy.
|Light Novels||Danganronpa/Zero • Danganronpa Kirigiri • Makoto Naegi's Worst Day Ever • Danganronpa 1 ・2 Beautiful Days • Danganronpa: Togami|
|In-Game Content||Danganronpa: Trigger Happy Havoc IF • Ultra Despair Hagakure|