Jongryu (종류) is a clan where only one of a surname can be in. Leader of this group, Kim Myungsoo, does not allow anyone else of the same surname to be in Jongryu. However, Kim Mingyu, his own dongsaeng, is also part of Jongryu – he was obviously an exception. Jongryu is not only a group that sees your surname, but also on personality. To be here, you have to come out strong, or honourable. Jongryu is definitely a somewhat rebellious group – or rather, a group who follows Myungsoo’s commands. Definitely, though, amongst people, you are deemed respected, if you’re in this group. Jongryu has members of both gender – guys and girls. 

Jongryu, definitely has a rival team, Jayone (재완). Their rules aren't like Jongryu, they are definitely less stricter, but they are not as honourable as Jongryu are. Park Taejun and his partner Park Hyungseok – leads a group of just guys of both faces and strength. Although sometimes mistaken as rebels too, Jayone are more of peacemakers as compared to Jongryu, and definitely, they are not as big as them. However, as Jongryu starts losing their members, Jayone increases in number.

Cheonsa (천사) – lead by Baek Sumin – on the other hand is a group of 5 girls. They aren’t rebels, however, they are more like the five top beauties (or so “Queenka”) in the school. They are not only good looking, but they have the money and standards too. Although they might sound like they are the typical girls that many wouldn’t like, they are surprisingly on the good side. It’s not that they have never rebelled, but they keep to their standards and are respected.