X College, a very old and famous school. It is famous not only for its strong teaching staff and unique management plan, but also for the students who study here. They either have unique personalities, extraordinary talents, prominent family backgrounds, or even have stunning beauty...
This is the outside world's view of X Academy, but the reality is not that simple. In comparison, the library located in this ancient school, known as the "classic of the century", has more mysteries that make people imagine.
Whenever the clock tolls 12 times at midnight, the surroundings of the library always emit a light blue light, faintly visible...