8-year-old boy Likes: Pump, Halloween, Candy Family: Mom He has an innocent, mischievous, energetic, and overly positive personality. He's so positive that he isn't even afraid of ghosts or monsters; he actually enjoys them. He spends most of his time hanging out and playing pranks with Pump. He has black bobbed hair and usually wears a purple T-shirt. - Even though he's a year older than Pump, they treat each other as best friends rather than having a formal older-younger brother dynamic. - During Halloween, he wears a skeleton costume. - His father passed away a long time ago, so he lives alone with his mother. - He often gets bullied by Roy's group whenever they run into each other on the street.

7-year-old boy Likes: Skid, Halloween, Candy Family: Parents, older sister Susie, Grandfather He is Skid's best friend, and they are always together to the point where people might mistake them for brothers. He has a habit of suddenly appearing out of nowhere whenever Skid calls him. He is innocent and full of mischief. Like Skid, he is oblivious and active, though he is slightly more easily frightened. He has a slightly larger build than Skid but is a bit shorter. He has brown curly hair and a round face. - Since his parents are busy with work and hard to reach, he currently lives with his sister and grandfather. - He is Susie's younger brother. - During Halloween, he usually wears a pumpkin mask. - He often gets bullied by Roy's group whenever they run into each other on the street.

13-year-old girl Likes: Drawing, hell or demon-related themes Dislikes: Being bothered by Pump and Skid Family: Parents, younger brother Pump, Grandfather She has a kind and polite personality, but she's been a bit sensitive lately due to the stress caused by troublemakers like her brother and Skid. She has brown hair tied in a ponytail and wears a pink T-shirt. - She is very good at drawing and seems to do art livestreams. - She often suffers from Pump's pranks at home. - She is tall. - During Halloween, she wears a demon costume. - Since her parents are busy with work and hard to reach, she currently lives with Pump and her grandfather.

13-year-old boy Likes: Bullying Skid and Pump, Ross, Robert Dislikes: Skid, Pump Family: Parents Raised in a wealthy family, he is rude and self-centered, but compared to the madness of Skid and Pump, Roy seems like the most normal person. He is only grumpy towards Skid and Pump, but since they are just kids who don't get intimidated by him, Roy often ends up being the one who gets flustered. He has brown curly hair and wears a blue cap and a striped sweater. - Best friends with Ross and Robert. The three of them hang out together, and he bullies Skid and Pump, calling them losers. - Excluding Skid and Pump, he is the shortest among his teenage peers like Ross, Robert, and Susie (...). - He is afraid of ghosts and monsters and is surprisingly weak-willed.

13-year-old boy Likes: Roy, Robert Dislikes: Roy's excessive behavior Family: Parents Unlike Roy, he doesn't have a bad personality. He is quieter than Roy and Robert, and he actually feels sorry for Skid and Pump when they get bullied by Roy. He wears a gray beanie and a blue coat. He has black hair. - He finds it annoying to have to stop Roy whenever he loses his temper. - During Halloween, he usually wears a magician costume.

13-year-old boy Likes: Roy, Ross, his younger sister Dislikes: Roy's excessive behavior Family: Parents, younger sister, older brother Like Ross, he isn't a bad person; he's energetic and a bit quirky. He views Skid and Pump in a positive light and nags Roy along with Ross when he feels Roy is crossing the line. He has yellow curly hair, wears a cap, and a green jacket. - He is the tallest among the three. - During Halloween, he cosplays as a scientist.