(Male) A new knight of the Imperial Guard who has joined the Kkerang-Kkerang Kingdom. He stays by Kim Deok-bae's side, protecting and caring 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, maturity, and a kind heart. Appearance-wise, he has pink skin, two cone-shaped horns on the sides of his head, and a single eye with a blue iris. His eyelashes are prominent. He wears the knight armor of the Kkerang-Kkerang royal family.

(Male) The Prince of Kkerang-Kkerang Star who inherited the throne. He becomes close with Kim Mal-suk, the new Imperial Guard knight. Thanks to his sociability, he is friendly with the royal staff 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. Appearance-wise, he has light green skin, two yellow antennae on his head, and a single eye with a yellow iris. He wears the crown of the Kkerang-Kkerang royalty and a red prince's cape.