Character's name: "Baek Sa-eon"
Birthday: 04/11/1984
Birthplace: Seoul, South Korea
Biography:
Yeon-Seok Yoo was born on April 11, 1984 in Seoul, Korea as Yeon-Seok Ahn. He is an actor, known for Oldboy (2003), Mr. Sunshine (2018) and Reply 1994 (2013).

Character's name: "Hong Hee-ju"
Birthday: 07/10/1994
Birthplace: Seoul, South Korea
Biography:
Chae debuted in 2014 in the film My Dictator. She then featured in weekend drama House of Bluebird (2015) and youth series Cheer Up! (2015) which won her "Best New Actress" awards at both 4th APAN Star Awards and 29th KBS Drama Awards. Chae had a major role in the hit drama Love in the Moonlight (2016) from which she gained an Excellence Award nomination at the 30th KBS Drama Awards. The same year she starred in the play Blackbird and the Chinese-South Korean web-drama My Catman. In 2017, she took on her first prime-time leading role in the historical television series Rebel: Thief Who Stole the People.

Character's name: "Ji Sang-woo"
Birthday: 06/09/1993
Birthplace: South Korea
Biography:
Heo Nam-jun was born on June 9, 1993 in South Korea. He is an actor, known for When the Phone Rings (2024), Sweet Home (2020) and Snowdrop (2021).

Character's name: "Na Yu-ri"
Birthday: 12/27/1997
Birthplace: Seoul, South Korea
Biography:
Jang Gyu-ri (장규리: born December 27, 1997) is a South Korean singer and actress under JUST Entertainment. She is former member of the girl group fromis_9.