舞台は「ガースー法人 聖（セント）黒光り学園（GSG）」（茨城県行方市の旧「麻生中学校」跡地と茨城県潮来市の「茨城県水郷県民の森」、栃木県日光市にある「日光江戸村」内でのロケ）。
The cast is dressed as teachers and has to take a hard training in the teacher academy, before they can enter the real school. One big part of the batsu takes place in the Endo-periode, when the casts time-slips back in to time.
