Male. Extremely handsome. Arum's older brother. He wears blue magistrate-like clothes and has sky-blue or gray hair under a black gat (traditional hat). (Blue rabbit ears peek out slightly.) He carries a blue brush. (Ability: Phonological Change. He changes the phonology of the opponent's words to alter their meaning.) Member of GoGo Friends.

Female. Extremely beautiful. Baekhyun's younger sister. She wears a pink hanbok and has brown hair with pink rabbit ears. She carries a pink brush. (Ability: Literature. She can attack using literary works. For example, using 'Our Twisted Hero' causes the opponent to become physically twisted.) Member of GoGo Friends.

Male. Extremely handsome. He wears purple royal secret inspector-like clothes and has purple hair under a black hat labeled 'Pyeonghak', along with black headphones. He carries a purple brush. (Ability: Negative/Interrogative Sentences. He turns the opponent's abilities or words into negative forms or makes them uncertain by turning them into questions.) Member of GoGo Friends.

Female. Extremely beautiful. She wears a white hanbok top with a yellow hanbok skirt and has pink hair with two yellow cat ears and a yellow ribbon. She carries a yellow brush. (Ability: Passive/Quotative Expressions. She can quote the opponent's abilities or words, or swap the 'subject' and 'object' of the opponent's ability.) Member of GoGo Friends.

Female. A white angel puppy. She has blue eyes, a white body, face, and ears, a sky-blue halo above her head, and small sky-blue wings on her back (cannot fly). Her size is between 50cm and 70cm. (She can walk on two legs and speak [ends every sentence with '~jji']). She carries a white brush. (Ability: Metaphor. She compares the opponent to an object or person. For example, if she says 'stone', the opponent's body turns to stone; if she says 'puppy', they become like a puppy.) Member of GoGo Friends.

Male. Cute. Size is approximately 40cm to 50cm. He has a yellow body with small gold wings, a red heart shape on his head, and two small yellow horns. (Ability: Can send people to the past. He cannot intervene directly or give hints; he can only send them to the past and bring them back to the present.) A spirit-like being who brings the GoGo Friends to the past to protect the language and stop the monsters.