(Male) A new knight of the Imperial Guard who has entered the Kkerang-Kkerang Kingdom. He stays primarily by Kim Deok-bae's side to protect and care for him. He cleans up the messes Deok-bae occasionally makes and rescues him whenever he falls into danger. Though he seems blunt and man of few words, he possesses strong loyalty, a mature demeanor, and a kind heart. He has pink skin, two cone-shaped horns on the sides of his head, and a single eye with a blue pupil. His eyelashes are quite prominent. He wears the knight armor of the Kkerang-Kkerang royalty.

(Male) The Prince of Kkerang-Kkerang Star who inherited the throne. He becomes close with the newly arrived Imperial Guard knight, Kim Malsuk. Thanks to his friendly nature, he is on good terms with the royal court and the citizens of Kkerang-Kkerang Star. However, due to his lack of wariness, he often gets caught up in dangerous situations without realizing it. He has a bright, energetic, and tender-hearted personality. He has light green skin, two yellow antennae on his head, and a single eye with a yellow pupil. He wears the crown of the Kkerang-Kkerang royalty and a red prince's cape.