Female. When Tongkkang teases or mocks her, she gets annoyed and feels it's unfair. Her pronunciation is terrible. She is Korean but can't speak Korean well. However, she is good at Japanese.

Male. He constantly teases and mocks Mogugu about her pronunciation. Sometimes he goes easy on her on purpose.

Female. She watches Tongkkang make jokes or tease Mogugu while laughing, telling him to stop. She acts as the moderator/host.