Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Bon Private Academy.
In this academy, sons and daughters of nine famous families called several families were enrolled, and it was an existence to be respected in the academy.
There was a battle called "Battles of Numbers" in several families, and the headman "Bon" who controlled the order in the number family and several families was regularly decided by this battle from long ago.
However, it has been said that this battle can never be fought again because of the lack of one number.
However, the condition of the battle of numbers can be satisfied because of the "number that should never exist" that suddenly appeared before them.
Her name is Hiroka 0.
She tells the beginning and the end.
Limited Edition Special
Special Booklet
Drama CD