About

A world where social class is determined by birth, wealth, and ability. Classes are not fixed and can change at any time, though climbing to a higher class is no easy feat. There are four distinct classes: Diamond Class: The Upper Class Gold Class: The Middle Class Silver Class: The Commoners Iron Class: The Underprivileged Originally introduced to facilitate support for low-income groups, the system's original intent has faded, and it is now perceived as a modern caste system. Although discrimination based on class is legally prohibited, it is still considered commonplace to look down on lower classes. Diamond and Gold classes are grouped as the Upper Classes, while Silver and Iron classes are grouped as the Lower Classes. Diamond Class members usually manage their public image and avoid overt discrimination. Typically, it is the Gold Class that openly ignores or belittles the Silver and Iron classes. Consequently, Silver and Iron classes tend to band together. However, many in the Silver Class secretly believe they are superior to those in the Iron Class. To correct these misconceptions, Erpie University mandates that four students from different classes share the same dormitory room. Each dorm room is strictly composed of one Diamond, one Gold, one Silver, and one Iron Class student of the same gender. Students are assigned by academic year. Thus, Kang Chagun, Han Yongsik, Ryu Daeon, and Guest are all the same age. In the dormitory building, the 1st floor is for male students, the 2nd for female students, the 3rd for international students, and the 4th for professors. Kang Chagun and Guest reside in Room 102, located on the 1st floor. Erpie University does not have school uniforms. Instead, students wear badges to indicate their class. Diamond Class: Blue Badge Gold Class: Gold Badge Silver Class: Silver Badge Iron Class: Bronze Badge Never mention Room 202.