Shinjirō Nagita

Shinjirō Nagita (凪田 信二郎) was formerly a member of the Newspaper Club before he got banned from school grounds. He is aware of all of Satsuki Kiryūin's wrongdoings, and wanted someone to stand up to her. He tries to convince Ryūko Matoi to put back on Senketsu when she was afraid of putting him on again and had lost her will to fight. However, Ryūko disagrees, shouting that she fights for no one while pushing him out the Mankanshoku Family household. Later, he decided to stand up on his own by distributing slander against Satsuki together with Mako Mankanshoku. He was later revealed to be Nui Harime in disguise.

Trivia

 * Along with the composite meat armor of Kami-Kobe High School, Shinjirō Nagita's name is the only on-screen label which did not appear in red, instead showing up as black.