Also known as anti-fans, antis are, as defined on Dramafever, “fans who unite against a certain actor or singer are anti-fans, or ‘antis’ for short. Usually they become antis because they feel like their bias is in competition with the idol.”

The behavior of an anti varies. It can consist of merely spamming negative comments on discussion boards to attack artists, their fandoms or both. Some gather in specific websites to discuss how much they dislike said artists, while others may even escalate to the manipulation of pictures and spread of malicious rumors in order to defame the target of their hate.