Prologue - Beginning of the end

The second academic year in the life of our main character - Ayanokoji Kiyotaka. A new beginning, new problems. There was a leak of data about a mysterious institution called the White Room. In this regard, several students of this institution enter Kodo Ikusei High School. Their main goal is to prove the superiority of the White Room, as well as to exclude Ayanokoji Kiyotaka. That's how "Class S" was formed, which contains only 9 students of different ages.