Danganronpa 2: Goodbye Despair (manga)

Super Dangan Ronpa 2 - Sayonara Zetsubou Gakuen (スーパーダンガンロンパ2 さよなら絶望学園 コミック) is a manga from Famitsu Clear Comics. (ファミ通クリアコミックス)

Though this might seem the most impopular or unknown one, its the only manga which follows the game story mode.

Serialized In (magazine): Famitsu Comic Clear (Enterbrain).

Chapters
Volume 1 was released on 2013/11/15 and Volume 2 on 2015/2/14.