Twilight Syndrome Girls

Twilight Syndrome Girls is the friend ship between Hiyoko Saionji, Ibuki Mioda, Mahiru Koizumi and Mikan Tsumiki from the Danganronpa fandom.

Canon
Prior to the events of Danganronpa 2: Goodbye Despair, all four girls were classmates of Hope's Peak Academy's Class 77-B. They were also friends with a Reverse Course student named Sato, whom Mahiru introduced to the other three. At one point, the five girls discovered a corpse in the music room. It was later revealed to be the body of Fuyuhiko Kuzuryu's younger sister, who Sato had murdered after she had threatened the life of Mahiru. Not long after, Fuyuhiko killed Sato after he had found out that she was the culprit behind his sister's murder.

Fanon
The four girls are a popular group in the Danganaronpa fandom, and they are often paired together in both official and fan-created content. One reason may be because each of the four girls are very distinct from each other in terms of personality. With Hiyoko being rude, Ibuki being energetic, Mahiru being the most sensible, and Mikan being timid. This makes for a unique group dynamic between them. However, because the girls are so different, there are some who question the believability of them being close friends at all, especially due to Hiyoko's cruel treatment of Mikan, along with Ibuki being noticeably distant from the other three.

Fandom
FAN FICTION

Trivia

 * All four girls almost died back-to-back, with the progression only being interrupted by Peko Pekoyama's death in between Mahiru's and Hiyoko's.
 * Hiyoko, Ibuki and Mikan all died in Chapter 3. The former two as the murder victims, and the latter being executed as the Blackened.