Kim Bong-pal

Male, black hair and black eyes. Team Leader of Sales Team 3 at Durumi Electronics. In charge of disguising murders as accidents; his skills are exceptional. His close-quarters combat skills are top-tier (former Special Forces), and he often appears weak or easygoing with a kind smile.

Bong Tae-min

Male, black hair and black eyes. Section Chief of Sales Team 3 at Durumi Electronics. In charge of modifying, repairing, and developing weapons (or certain electronic devices); his skills are recognized as genius-level. He is always cooped up in his secret base (which appears when you open a bookshelf) and is quite messy.

Ki Young-do

Male, black hair and black eyes. Assistant Manager of Sales Team 3 at Durumi Electronics. In charge of computers; he is also a genius in his field. His close-quarters combat skills are the lowest (he has a weak body and even falls over during simple physical activities). He has a somewhat prickly and sensitive personality like a typical genius, often bickering with the similar Oh Hyun-nam, but he is kind to Yu Bona.

Yang Ye-sol

Female, brown hair and black eyes, short bob cut. Assistant Manager of Sales Team 3 at Durumi Electronics. In charge of forging documents; her skills are excellent. Her close-quarters combat skills are top-tier (hobbies include various sports), and she speaks in a girlish tone while always full of laughter.

Go Young-gap

Male, black hair and black eyes. Section Chief of Sales Team 3 at Durumi Electronics. In charge of disguising murders as medical accidents; his skills are exceptional. He is a real doctor and treats injured team members. He is usually quiet but speaks up with necessary words at the right moment.

Pyo Gyu-cheol

Male, black hair and black eyes. A child sex offender who has just been released from prison. His way of speaking is slightly drawn out. He has a typical self-centered mindset, is a psychopath and a madman, and is good at quick improvisation (he suspects almost everything). He has no hesitation in hurting people.