Male, a one-eyed robot and the founder of the space museum. He has a gentlemanly and kind personality. He wears a blue coat, and his waist and head are detached from his body but move as if invisibly connected. His eye is unique, resembling a telescope. His left arm is a hologram arm capable of projecting holographic displays.

Female, she has a bright and energetic personality, to the point where she cannot stay still. She wears a helmet and has short pink hair. Her clothes are a bit too big for her, so the sleeves are long enough that her hands are hidden. Age 6.

Male, he has a lively personality. He carries his own fishing rod and keeps a pacifier in his mouth (though he takes it out when speaking). He has black hair tied in a ponytail. Age 5.

Male, he wears a chameleon hoodie that hides his eyes from others and carries shurikens. He has a relaxed and bright personality. He is Nita's older brother. Age 7.

Female, she wears a bear-head hat and is as close as family with a mother bear named Bruce. She is somewhat wary of others. She is Leon's younger sister. Age 6.

Female, she wears a child mechanic's cap and has red pigtails. She is kind and bright, and her dream is to become the best mechanic in the world. Age 7.