O’PENing
Season 4
S4 · E1 · Aug 17, 2025
Episode 1 Episode 1
76 min
S4 · E2 · Oct 3, 2025
Episode 2 Episode 2
73 min
S4 · E3 · Oct 8, 2025
Episode 3 Episode 3
84 min
S4 · E4 · Dec 8, 2025
Episode 4 Episode 4
S4 · E5 · Dec 9, 2025
Episode 5 Episode 5
5 episodes in Season 4
Where to watch
Not streaming anywhere
Not on any streaming service in United States, and not available to rent.
Your rating
Your review
Cast
130 people
Lee Chan-yang
Police Officer
Known for
Lovely Runner
Gyeongseong Creature
Ahn Hyun-ho
Jung Jae-yi
Known for
May I Help You?
Believer 2
Choi Woo-sung
Bang Woo-ram
Known for
The King: Eternal Monarch
It's Okay to Not Be Okay
Kim Ji-in
Lee Se-ra
Known for
Extraordinary You
So Not Worth It
Shim Yi-young
Han Soo-young
Known for
Love Alarm
Extracurricular
Yoon Seo-hyun
Jung Yeon-oh
Known for
Pinocchio
A Love So Beautiful
Song Yong-jin
Moon Tae-hyun
Also in
Two Weddings and a Funeral
Attack the Gas Station!
Ha Yoon-kyung
Wi Da-in
Known for
Extraordinary Attorney Woo
See You in My 19th Life
Lee Hak-ju
Park Hyun-woo
Known for
My Name
Newtopia
Jeong Jae-kwang
Jeon Jin-seok
Known for
It's Okay to Not Be Okay
Nevertheless,
Moon You-kang
Chae Seung-beom
Known for
When Life Gives You Tangerines
Hijack 1971
Jang Ji-soo
Park Sung-hee
No other roles listed
Kim Kang-kyu Director · Lee So-yoon-I Director Yoo Beom-sang Director
Total runtime 33h 0m · Episode length 55 min · Country South Korea
Show info
Premiered
May 2, 2022
Latest episode
December 9, 2025
Status
Returning series
Networks
tvN · TVING
Country
South Korea
Type
Scripted
Episode length
55 min
Total runtime
33h 0m
Original language
Korean
Production
Studio Dragon
Production
Fantagio
Production
GTist
Production
CJeS Studios
Production
Merry Christmas
Production
KPJ
Production
DK E&M
Production
Slingshot Studios
Production
YLAB
Production
Next Scene
Production
Jumbo Film
Production
Neo Entertainment
Production
Studio Icon
Production
Studio Coming Soon
Production
Languages
Original title
오프닝
Spoken on screen
Korean
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