More than a hundred years ago A secret organization has taken the initiative to establish a school that will train students to have various qualifications to facilitate the search for people to work in the organization. Therefore established '

Royal Investigation High School’

created for such purposes Divide students into 3 dormitories, selected according to individual suitability. Each dormitory has an advisor who is there to help students and keep order. Appoint students as dormitories

1.       ‘Black Phantom’

Hall for those in the night It is a tower that focuses on ambushes. There are 2 departments: '

Back Mafia’

and '

Black Magic’

First department?

Back Mafia

The department deals with all types of weapons and minor military training. The second department

Black Magic

It is related to all dark arts including ancient legends and beliefs.

2.       ‘Clever Phantom’

A dormitory for the brightest and most dedicated to education. It is mainly about planning and using intelligence. There are 2 departments: '

Hidden Invest’

and '

Frame Maneuver’

       Hidden Invest

Or the deep covert tower is a department that deals with infiltrating and spying on secrets in various intelligent organizations such as NASA, working in relationship with the tower.

Frame Maneuver

Or the name in Thai is 'Planning Hall' which will be responsible for planning various battles.

3.       ‘Sassy Phantom’

The chamber involves infiltrating and operating within general organizations and various locations. This dormitory is the only dormitory at the institute that does not have divisions. But those who study are grouped together and are collectively called the Rajahruthai Department.

Rajahruthai Department is a training department where students have to pretend to live in various high royal families. Or the daughters of nobles use the Mystery Charm to obtain important information to investigate the secrets of that country that are beneficial to the organization.