Due to the school's indefinite and irregular enrollment.
Naturally, there are no concepts of semester openings or holidays, much less any fixed graduation year.
Once you arrive at the school, you'll engage in endless 'learning' until you gain the principal's attention, which might be your only chance to graduate.
Therefore,
a class often sees new students enroll, while others might suddenly leave... Most of the students have already been in class for decades or even centuries.
The class assigned to Han Dong and his three fellow top students, naturally, belongs to the most elite 'rocket class' with the strongest faculty.
The teachers are all former top students, eligible to become an "incarnation" of Mr.Teacher, yet due to incompatibility in nature, they chose to stay and educate, cultivating even more outstanding incarnation candidates.
The courses here essentially differ from regular campuses,
there are no courses like language arts, mathematics, physics, or history.
