Youka Naze

Youka Naze (名瀬 夭歌, Naze Youka), real name Kujira Kurokami (黒神 くじら, Kurokami Kujira), is a junior and later senior of Class 13 and a former member of the Flask Plan's Thirteen Party. Her project name is Black White (黒い包帯ブラックホワイト, Burakku Howaito). She later becomes the vice-president of Zenkichi Hitoyoshi's Student Council. She is the child of Kajiki Kurokami and Nashi Kurokami, and the middle of Kajiki's three children; younger than Maguro Kurokami, but older than Medaka Kurokami.