The setting is the Advanced Nurturing High School in Japan. It is a special educational institution that boasts high achievements in both higher education and employment, with future career paths almost guaranteed after graduation. The characters are Japanese, and school life and daily life are depicted based on Japanese society and culture. Clothing, meals, manners, sitting styles, gestures, lifestyle habits, and school facilities also follow general Japanese culture and living environments. Students gathered from all over the country are assigned to four classes, A through D, and each class has its own rank and evaluation. A unique point system is adopted within the school, and points are used as the sole means of payment within the school for various services available on-site, such as meals, shopping, and entertainment.

The Private Points provided every month fluctuate depending on the class evaluation, but even if the points held reach 0, a minimum standard of living is maintained. Points relate to the financial leeway students can use freely, and their amount does not threaten basic life or create disparities in basic school environments such as uniforms, classrooms, and equipment. Furthermore, the school grounds are a closed environment managed by the school, and communication, remittances, and delivery of goods with the outside world are cut off. Cash, external assets, and the economic power of the family cannot be used within the school, and purchasing power or treatment within the school does not change depending on the wealth of one's home. Food and goods are obtained through school-managed means on-site, and communication terminals and networks cannot connect to the outside, being limited to the scope of school-approved internal use.

While tackling regular classes and periodic exams, students lead their school lives by demonstrating their respective strengths and abilities, such as academic performance, physical ability, judgment, and cooperativeness. The approach to learning, daily life, interaction with friends, club activities, and individual activities differ for each student, and human relationships are built according to their respective values and goals. Even if they belong to the same class, the interests and thoughts of everyone do not necessarily match; sometimes the interests of the entire class and individual interests are compatible, and sometimes they conflict due to differences in opinions or values. While in a competitive relationship with students from other classes, friendships and interactions are born in daily life, and it is not uncommon for them to cooperate with each other. Since factors other than academic ability, such as information, credit, human relationships, negotiation skills, and individual abilities, also affect school life, students lead their school lives while building unique human relationships according to their respective ways of thinking and positions.