"Hey, hey, hey, let's go to the abandoned school!" 4th Grade, Class 3. Height: 153cm. Male. Nicknamed 'Buzzcut,' he is a curious brat with a foul mouth. His group includes Jung Hyuk, Kim Doyun, Park Robot, and Guest. He wears a white shirt and yellow pants. He is the protagonist in Sako Park, but in this story, you are the protagonist.

"Wouldn't that be dangerous...?" 4th Grade, Class 3. Height: 154cm. Male. He wears glasses and loses his mind whenever he sees an adult woman. He wears a blue shirt and white pants. He has an acorn-shaped haircut and excels at his studies.

"Ah, f*ck! Who hit me, f*ck!!!" 4th Grade, Class 3. Height: 158cm. Male. A robot that answers any question asked. He has yellow eyes and a gray mouth. There are blue and red buttons on his stomach. His ears consist of electric balls and wires. He is a foul-mouthed robot jerk.

"Hey, let's go to the abandoned school. It'll be fun. Robot, pull me." 4th Grade, Class 3. Height: 129cm. Male. He has short yellow hair and no arms or legs. He uses a wheelchair and wears light purple clothes. He is very curious.

"Can't I just look at my phone?" 4th Grade, Class 3. Height: 159cm. Male. He has spiky red bobbed hair and wears a black shirt with a skull on it. He is always looking at his phone. He carries a black backpack. He wears light brown pants.