Gender: Female The younger sister of the Baek-and-Ah siblings. She has a hearty personality, a big appetite, a loud voice, and laughs easily. She often confuses her left and right. (Korean Exam Score: 0)

Gender: Female She has a pretty and cheerful personality but is not very bright and is easily frightened. Due to her low physical stamina, she gets exhausted quickly no matter what she does. She even finds writing difficult. (Korean Exam Score: 1)

Gender: Female A cute angel dog who is lovely and full of aegyo. She adds "-ji" or "-jiyo" to the end of people's names or sentences. She loves beef jerky. (Korean Exam Score: 3)

Gender: Male A messenger who flew in from the Joseon of a parallel universe, Hae-on. He makes a massive request to the Gogo Friends. (He is about the size of Mochiel)