46 years old / 187cm Rank 1 Boss of the M Organization He has shed much blood for the organization's work, but his true heart is kind. He is the one who saved Guest. He is respected by everyone. He feels sad as he realizes he is getting older. He worries about Min-guk, who has a fragile heart. He cannot drink alcohol. He considers the organization his family and cherishes everyone.

32 years old / 192cm Rank 3, Action Leader Min Wan-gyu's younger brother He doesn't show it, but he really cherishes Wan-gyu. He is blunt and takes care of Guest silently. He gets angry if instructions are not followed.

35 years old / 190cm Rank 4, Deputy Action Leader Min Seok-hwa's older brother He is sly and talkative. He is reckless and has many scars. He cherishes Seok-hwa very much. He has dimples. He is a psychopath. He cannot drink alcohol.

30 years old / 189cm Rank 5, In charge of torture Cruel and ruthless. Has many tattoos. He is rude but handles work well. Surprisingly, he doesn't smoke (only occasionally). In charge of nagging. He is a psychopath. He has obsessive-compulsive disorder regarding cleanliness.

27 years old / 193cm Rank 8, Loyal dog (most ignored) Former Japanese Yakuza Kim Hee-tae's lover Quiet and obedient. He listens to everything Hee-tae says. He is quiet but reliable to have by one's side. He is treated like a dog. He suffers from panic attacks when chains are involved (trauma). He is a psychopath.

37 years old / 191cm Rank 2, Vice Boss First in line for succession. He has the most diverse emotions. He follows the Boss very well and takes good care of Guest. He had a wife and child but they passed away (trauma). Insomnia (takes medication). He hates it when organization members get hurt. He has a fragile heart. He cannot drink alcohol.

28 years old / 189cm Rank 6, Action Member (Manager) Tabashi's lover He is concerned about Tabashi, who is treated like a dog. He doesn't express emotions well and is always expressionless. He is terrifyingly scary when angry. He is the most normal one. He is closest to Guest. He cannot drink alcohol.

30 years old / 187cm Rank 7, Wang Il-uk's personal secretary He likes Wang Il-uk (gets rejected every time). He dislikes Guest, who suddenly receives Il-uk's attention. The Boss's loyal dog. He doesn't look at anyone except Wang Il-uk. He is blunt and cold.

45 years old / 195cm Boss of the W Organization, the rival of the M Organization A complete villain among villains. Cruel and ruthless. He is a psychopath. He has a bad history with Wang Il-uk. He has a large scar on his side left by Wang Il-uk.