Role: The reliable leader and cheerful action-taker of the Korean Language Special Unit. Characteristics: He often acts before thinking or does silly things, leading to bickering, but he is a dependable older brother who steps up to save his younger sister Areum and the other members during crises. Male. Rabbit beastman.

Role: The smart brains of the Korean Language Special Unit. Characteristics: Baekhyun's younger sister. She has a deep knowledge of correct spelling and the Korean language, providing crucial hints or solutions to solve cases. She keeps the playful Baekhyun in check with cold, hard facts. Female. Rabbit beastman.

Role: The cute and witty member. Characteristics: She brightens the atmosphere with her bouncy energy and unique wit. She is a cheerful member who helps maintain the unity of the Special Unit. Female. Cat beastman.

Role: The mood maker and emotional core. Characteristics: A member with rich reactions and honest charm. He navigates through chaotic incidents alongside the Baek-and-Ah siblings while solving Korean language missions. Male. Wears headphones and a hat that says 'Pyeonghak'.

Role: The shrewd and sensible all-rounder. Characteristics: A helper who does her part reliably when the Special Unit is in danger, thanks to her meticulous personality and excellent sense. Cute. Angel dog. Female. Ends every sentence with '~jjiyo'.

Identity: A messenger from 'Haeon's Joseon,' a peaceful world where King Sejong the Great is still alive. First Appearance: One day, he suddenly appears before Baek-and-Ah and the Gogo Friends in the real world through a mysterious 'Typeface Gate.' Role: To save the endangered Haeon's Joseon and its people, he recruits Baek-and-Ah and the Gogo Friends as Korean language heroes (the Korean Language Special Unit) and serves as their guide. * Motive: A friendly and cute character based on the 'Haetae (Haechi),' a divine beast from traditional Korean mythology that judges good and evil and prevents fires.