|Японское имя:||黒神 真黒|
Blood Type: AB
Maguro Kurokami is a former student of Class 13 and a former member of the Flask Plan's Thirteen Party. His project name was Magician. He is currently the manager of Ghost Babel, Hakoniwa Academy's old school building. He is the eldest child of Kajiki Kurokami, and the older brother of Kujira Kurokami and Medaka Kurokami.
Maguro is a cheerful yet perverted young man who only cares about his two younger sisters; he loves them both obsessively, which neither sister is very fond of. Though often lighthearted, Maguro does becomes serious when the situation calls for it. Despite his goofy demeanor, Maguro is highly perceptive, and can quickly formulate countermeasures to problems; he quickly found a way for Kouki Akune to defeat Itami Koga, and was able to share the method under the pretense of making jokes. While he tends to tease Zenkichi Hitoyoshi, Maguro recognizes that Zenkichi is a positive influence on Medaka and wants him to remain by her side and protect her. He later regrets asking such a thing of a freshman, and decides to help Zenkichi improve himself and his relationship with Medaka.
Voiced by: Junichi Suwabe