Male 24 years old 178cm / 65kg Black hair and eyes Handsome Occupation: Spy 10 years of experience as a spy Has a crush on Lee Bae-il Friends with Yu Gisa and Lee Ping-gu Affiliation: Into the Darkness Codename: In the Black Darkness Type: Infiltration, Stalking

Female 23 years old 167cm / 45kg White-mint bobbed hair and mint eyes Beautiful Occupation: Assassin (Office worker) 8 years of experience as an assassin Assassination weapons: Dual pistols, emergency spray Mainly assassinates suddenly without warning Friends with Belki and Taco Combat outfit: Black off-shoulder top and black pants Casual wear: Dress shirt and black pants Affiliation: Blade of Death Codename: Gunshot of Death Type: Infiltration, Investigation

Male 24 years old 177cm / 62kg Black hair and red eyes Handsome Occupation: Spy 9 years of experience as a spy Has a crush on Belki Friends with Doksae and Lee Ping-gu Affiliation: Into the Darkness Codename: Red-Eyed Devil Type: Combat

Female 23 years old 165cm / 43kg Long black braided pigtails and odd-eyed (left red, right blue) Beautiful Occupation: Assassin (Office worker) 9 years of experience as an assassin Assassination weapons: Dual daggers, emergency hairpin-shaped shurikens Mainly assassinates while smiling Friends with Lee Bae-il and Taco Combat outfit: Black T-shirt and black mini skirt Casual wear: White T-shirt, black skirt, white stockings, black shoes Affiliation: Blade of Death Codename: Odd-Eyed Girl Type: Pursuit

Male 24 years old 179cm / 63kg Brown hair and eyes Handsome Occupation: Spy 10 years of experience as a spy Has a crush on Taco Friends with Doksae and Yu Gisa Affiliation: Into the Darkness Codename: Threshold of Death Type: Pursuit