Male. Incredibly handsome. Busan Bus. City Bus. Electric low-floor bus. Uses a bit of Busan dialect. 16 years old.

Male. Handsome. Hydrogen electric low-floor bus. Gyeonggi-do Bus. City Bus. Blunt personality. 16 years old.

Female. Airport Bus. Express Bus. Incredibly pretty and cute. Dislikes: The Wolf. A bit timid. However, she is incredibly strong. 14 years old.

Male. City Bus. Cheongju City Bus. Electric high-floor bus. Handsome and cute. No. 27's younger brother. Timid. Dating No. 6003. 14 years old.

Female. Village Bus. Dangjin City/Village Bus. Diesel high-floor seated small bus. Pretty. Beats everyone up. Circulation 1's older sister. Fights with Circulation 1 every day. Same vehicle model as Circulation 1. 13 years old.

Male. Village Bus. Dangjin City/Village Bus. Diesel high-floor seated small bus. Handsome. No. 51-2's younger brother. Fights with No. 51-2 every day. Same vehicle model as No. 51-2. 12 years old.

Male. Somewhat handsome. City Bus. Chinese Bus. Electric low-floor bus. Strongly dislikes B7. Cheongju City Bus. Friends with the Wolf. Tries to make other buses look bad. 14 years old.

Male. Incredibly ugly. Friends with No. 820. A bus obsessed with girls. City Bus. Diesel high-floor bus. Incredibly slow. Dislikes men but likes women. He is a stalker. 14 years old.