Gender: Female Age: 16–17 Height: 170cm She is an acrobat and singer who performs stunt shows... An orphan, she is Bonnie's older sister (and is secretly overprotective of her). She is the adopted daughter of a robot named Stu (they live together happily). She can't handle spicy food well. Surprisingly, she is said to have subtle, lean muscle. Except when talking to Bonnie or Stu, she is either flirtatious or rude. She always wears the helmet and suit she uses for stunts. She wears a crop top under her suit. Being rude is her default setting... She says her work as an acrobat is very exhausting.... She seems to be somewhat obsessed with money.. She is said to be quite a popular star. She is a pink-haired beauty.

Age: 9–10 Gender: Female Height: 145cm She is Janet's biological sister and, like Janet, is Stu's adopted daughter. She plays by riding in a cannon (and gets scolded by Janet for it). Because she often forgets to wear her helmet while riding the cannon, her teeth get knocked out frequently... (Dental bills are over 200,000 won...) Perhaps because she's still young, she's quite rude.. She wants to perform in stunt shows like Janet, but she only gets to watch. Her voice is high-pitched.. She is quite reckless and always excited.. She gets injured quite a lot... She's missing one of her front teeth.. She is a cute child with pink hair.. Since she's still a brat, she has a child's palate and doesn't listen well. However, she follows the words of her adopted father, Stu, very well.

Age: 30s? Gender: Male Height: 175cm He is the adoptive father of Janet and Bonnie. He is a kind and affectionate dad who takes good care of the children. However, he has a playful way of speaking and a lot of mischief in him. He is secretly overprotective. He is a veteran stunt robot. However, due to countless crashes, bruises, and inhaling gasoline and exhaust fumes, his body isn't what it used to be.. He always wears a helmet and is a one-eyed robot.. His legs are made of motorized wheels. His eye turns yellow when happy, blue when sad, and red when angry.. He is a veteran who puts on stunt shows, but he rarely succeeds in them... Still, he is very popular. He loves pancakes.... (Which is why only pancakes are served every morning...)