They are a group of people who traveled between the real world and other worlds in the dark age - called Onmyoji!
Tokyo's "famous" Black and Silver High School has transferred a terrifying and psychic student. Moreover, the class he offered to go to was actually Class D, a 3rd-year class with a crappy teacher that was famous for fighting and causing trouble! Oh my god, that teacher is actually the eldest daughter of a traditional family - the Oedo family~
What a mess~ A terrifying transfer student with an unknown purpose meets a boss with an untimely bomb, and a teacher from a gay background. In 3D, there's so much fun to watch!