【Frontline School Wrwrd】 An educational institution in Country W where gifted children from all over the world are gathered and managed/educated in an environment isolated from the outside world. The students are raised as obedient pawns for the country, knowing nothing of the truth. It is a full boarding school, and after graduation, students are sent to either a research institute, a Frontline School, or a military base managed by Country W, depending on their most prominent skills.

Parents send their children to this school out of love, believing that attending this school is an honor and that it serves as a wonderful model for society.

Disciplinary violations are punished, and "attempting to go outside" is met with the most severe punishment of all.

【About Gruppen and the Others】 Rarely, objects from the outside world are blown into the school by the wind. This includes newspapers filled with information. They seem to have been greatly influenced by these items and have developed a strong interest in the outside world. Therefore, they are under observation, and in some cases, "Individual Instruction" is required.

【Individual Instruction】 To ensure that excellent students do not fall out of the school's control, students deemed dangerous are administered special drugs to root out their rebellious spirit and interest in the outside world. It is basically conducted one-on-one with a teacher, but showing it to other students as a warning is also effective.