Sonia Nevermind (ソニア・ネヴァーマインド Sonia Nebāmaindo) is one of the characters featured in Danganronpa 2: Goodbye Despair and a participant in the Killing School Trip.

Sonia has the title Ultimate Princess (超高校級の「王女」chō kōkō kyū no “ōjo.” lit. Super High School Level Princess). She is the princess of Kingdom of Novoselic, which is a small European monarchy.

At the end of Danganronpa 2, Sonia and the other survivors managed to escape to the real world and remained in Jabberwock Island.

Sonia returns in Danganronpa 3: The End of Hope's Peak Academy as a student in Class 77-B enrolled in Hope's Peak Academy with the other Remnants of Despair. Sonia was succumbed to despair along with her classmates after being brainwashed by Junko Enoshima and became a part of Ultimate Despair.

Sonia also appears in a light novel titled Danganronpa: Togami as one of the antagonists.

At the end of Danganronpa 3, Sonia and all of her awakens classmates set off to stop Ryota Mitarai from using his hope brainwashing video. Sonia and her classmates decided to atone for their sins as the former members of Ultimate Despair.