Crash Course in Romance The Butterfly Effect of Our Relationship (Season 1, Episode 9)
TV-14
TV Episode | Comedy, Drama, Romance

Primary photo for The Butterfly Effect of Our Relationship

Crash Course in Romance

The Butterfly Effect of Our Relationship (Season 1, Episode 9)

TV-14

TV Episode | Comedy, Drama, Romance

Chi-yeol and Haeng-seon deal with the fallout after their secret is discovered - forcing the two to confront what it means for them moving forward.

Director

Je Won Yu

Writer

Yang Hee Seung (created by) (as Hee-Seung Yang) (written by) (as Hee-Seung Yang)

Producer

Yu Bin Lee

See all filmmakers & crew (5)

Edit Released

Updated Feb 11, 2023

Release date

Feb 11, 2023 (United States)

Awards

Series awards

1 win & 2 nominations

Contacts

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Cast	+ Add Cast
20 cast members

Name	Known for
Jeon Do-yeon Nam Haeng-Seon Nam Haeng-Seon See fewer	The Housemaid (2010)
Jung Kyung-ho Choi Chi-yeol Choi Chi-yeol See fewer	Missing 9 (2017)
Lee Bong-ryun Kim Young-Joo Kim Young-Joo See fewer	Okja (2017)
Oh Eui-Sik Nam Jae-Woo Nam Jae-Woo See fewer	While You Were Sleeping (2017)
Sin Jae-ha Ji Dong-Hee Ji Dong-Hee See fewer	Taxi Driver (2021)
Jang Young-nam Jang Seo-Jin Jang Seo-Jin See fewer	A Werewolf Boy (2012)
Kim Sun-young Jo Soo-hee (Soo-ah's mother) Jo Soo-hee (Soo-ah's mother) See fewer	Concrete Utopia (2023)
Hwang Bo-ra Lee Mi-Ok (Dan-Ji's mother) Lee Mi-Ok (Dan-Ji's mother) See fewer	Skeletons in the Closet (2007)
Lee Chae-Min Lee Sun-Jae Lee Sun-Jae See fewer	Alchemy of Souls (2022)
Ryu Da-Bin Jang Dan-Ji Jang Dan-Ji See fewer	18 Again (2020)
Kim Da-hwin Jeon Jong-Ryeol Jeon Jong-Ryeol See fewer	Crash Course in Romance (2023)
Jung Eui-soon Education director Education director See fewer	Secret Love Affair (2014)
Heo Jung-do Kang Joon-Sang Kang Joon-Sang See fewer	W (2016)
Sung Ki-yoon Bang Dae-Geun (Soo-Ah's father) Bang Dae-Geun (Soo-Ah's father) See fewer	A Time Called You (2023)
Kim Min-chul Young Choi Chi-yeol (as Kim Min Chul) Young Choi Chi-yeol (as Kim Min Chul) See fewer	Project Wolf Hunting (2022)
Lee Min-Jae Seo Geon-Hu Seo Geon-Hu See fewer	Train (2020)
Lee Sang-yi Mr. Popular Mr. Popular See fewer	Once Again (I) (2020)
Kim Tae-Jung Lee Hui-Jae (as Tae Jung Kim) Lee Hui-Jae (as Tae Jung Kim) See fewer	A Time Called You (2023)
Lee Yeon Nam Haeng Seon [Teenager] Nam Haeng Seon [Teenager] See fewer	Kill Boksoon (2023)
Roh Yoon-seo Nam Hae-Yi Nam Hae-Yi See fewer	Crash Course in Romance (2023)