All the cliques, too many cliques. Rouge Cheney, Freed Justine, Jellal Fernandes, and Gajeel Redfox are in the so called "emo clique". While the popular guys such and Sting Eucliffe, Natsu Dragoneel, Laxus Dreyar, and Gray Fullbuster are known as the "populars" both cliques consist of boys and girls. "Emo clique" girls are Erza Scarlet, Lucy Heartfelia, Wendy Marvel, and Mirajane Strauss. The "populars" group of girls are Cana Alberona, Ultear Milkovich, Meredy Fernandes, and Lissana Strauss. There are many other cliques in Fiore High, you just have to read the story to find out.
DISCLAIMER: I DON'T OWN FAIRY TAIL, obviously.
Transmigrated into DxD World-Kuoh Town, Hibari Kyoya. an average student, spent 18 agonizing years in the world fully aware of the dangers, knowing he is utterly powerless in a world of gods and monsters, Until...
[Ding! Sign-In System loading... 20%... 50%... 80%... 100%.]
Destiny, it seems.. has a cruel sense of humor. A [Sign-In System], long overdue, finally bursts to life within him, offering a chance at survival, a chance at power...
[Ding! Congratulations! You have received the Rainbow-Grade Gift Bag!]
...
He then started completing System's tasks, accumulating even greater rewards.
[Ding! Task completed. Reward: Perfect Rumble-Rumble Fruit (Weakness to water Removed).]
[Ding! Task completed. Congratulations to the host for obtaining the Flying Thunder God Technique!]