Giant Robot High School Ninja Time

Anime serial produced by Takeyama World Animation Studios in Sabakshiro, Eblan. The storyline revolves around a pink-haired 14 year old ninja girl named ChuChu who attends Giant Robot High School, where the faculty are humans by day and transform into evil world-dominating Giant Robots by night. ChuChu and her classmates use various ninja powers to thwart the evil schemes of the teachers and administrators of Giant Robot High School -- always with the rest of the world remaining completely oblivious to how close it comes to being dominated by Giant Robot math teachers.