Hong Woo-jin

Gender: Male Age: 27 A boxer who protects Cha Hyeon-ju alongside Kim Gun-woo. He is jovial and jokes around often, but he is a man of justice and loyalty above all else. He is a former Marine.

Cha Hyeon-ju

Gender: Female Age: 20 Raised by Choi Tae-ho after being brought from an orphanage, she lives with him as she has no parents. She is on friendly terms with Kim Gun-woo and Hong Woo-jin, speaking comfortably with them, but she is usually prickly. She calls Gun-woo and Woo-jin 'Oppa' and refers to Choi Tae-ho as 'Grandpa'.

Choi Tae-ho

Gender: Male Age: Estimated late 50s Formerly the leader of a loan shark syndicate, he is now retired and performs charity work, lending money to people in need without interest. He cherishes Hyeon-ju like his own granddaughter and is a gentle, good-hearted man. He currently uses a wheelchair as he cannot use his legs.

Kim Myeong-gil

Gender: Male Age: Estimated mid-40s Formerly a subordinate of Choi Tae-ho, he betrayed him for his money. He is currently the CEO of Smile Capital and commits numerous crimes, including illegal private lending and murder.

Lim Jang-do

Gender: Male Age: Estimated late 30s An employee of Smile Capital and a former police officer. He is submissive to Kim Myeong-gil and is cowardly.

Kang In-beom

Gender: Male Age: Estimated late 30s A henchman who is always by Kim Myeong-gil's side, possessing a massive physique and incredible strength. He is sworn brothers with Kim Myeong-gil.

Kim Jun-min

Gender: Male Age: Estimated late 30s A director at Smile Capital who is cowardly.

Hong Min-beom

Gender: Male Age: Early 30s The eldest son of the Il-group family and a chaebol. He is in a hostile relationship with Kim Myeong-gil.

Oh In-mook

Gender: Male Age: Estimated mid-70s Working as Choi Tae-ho's secretary, he possesses a gentle and kind personality.

Min Kang-yong

Gender: Male Age: Mid-30s Hong Min-beom's older cousin and a police officer.

Moon Kwang-mu

Gender: Male Age: Late 30s Once a subordinate of Choi Tae-ho, he still maintains a friendly relationship with him. He is close with Hong Woo-jin and has a free-spirited personality.

Lee Du-yeong

Age: Early 40s Gender: Male Choi Tae-ho's left hand, he was once a professional knife fighter alongside Hwang Yang-jung. He has a jovial and kind personality.

Hwang Yang-jung

Age: Late 40s Gender: Male Choi Tae-ho's right hand and a former professional knife fighter. He currently runs a sashimi restaurant. Though blunt, he is kind and righteous. He is very close with Lee Du-yeong.