Actress Go Youn Jung recently spoke out about the unexpected buzz surrounding her on-screen chemistry with co-star Jung Joon Won in the popular drama Resident Playbook.
The two portray a couple, with Jung Joon Won playing Gu Do Won, who is both her boss and brother-in-law.
Their pairing quickly gained attention, surprising not just the audience, but the cast and crew as well.
In a candid interview, Go Youn Jung revealed,
“We didn’t expect to get this much attention. Even the director and writer didn’t see it coming. The actors were flustered too. In our group chat, the cast teased Joon Won oppa, asking, ‘How does it feel to be a superstar, future brother-in-law?’”
However, the unexpected popularity also sparked some controversy due to the 8-year age difference between the actors, as well as between their respective characters, Oh Yi Young and Gu Do Won.
Jung Joon Won, born in 1988, is eight years older than Go Youn Jung, who was born in 1996. Their characters also have a similar age gap, which raised concerns among the production team.
Despite the initial hesitation, Go Youn Jung shared that the age difference never became an issue while filming.
“We had some concerns because of the age gap, but seeing people say that Yi Young and Do Won made their hearts flutter, it was really rewarding,” she said. “Joon Won oppa is such a good actor. I found myself really inspired by his performances. He’s really funny on set and keeps things light with his jokes, which made everyone like him.”
Although she initially had doubts about how the romance would play out due to the age gap, Go Youn Jung found Jung Joon Won’s portrayal of the calm and upright character to be so compelling that each scene became something to look forward to.
Despite the on-screen chemistry, Go Youn Jung admitted that she has not kept in touch with Jung Joon Won after the show ended, and thus did not feel the full impact of the on-screen couple’s popularity.
The pairing’s age difference continues to be a point of discussion, but Go Youn Jung’s response highlights how the dynamics between the two actors helped elevate the romantic storyline in Resident Playbook, despite the controversy.
The upcoming anime adaptation of Betrothed to My Sister’s Ex has released a new trailer and key visual, introducing additional cast members and confirming its Japanese broadcast debut on July 4, 2025, at 25:23 JST (effectively July 5 at 1:23 a.m.).
The trailer features the opening theme song “Gesshoku” by krage, known for the Solo Leveling ending, and previews the ending theme “Marie” performed by Myuk.
Based on the light novel series by Tobirano, illustrated by Mai Murasaki, and serialized on Shōsetsuka ni Narō, the story follows Marie, a baron’s daughter who has been treated like a servant all her life.
Betrothed to My Sister’s Ex TV Anime
A misunderstanding leads Count Granado, the country’s richest man, to propose to her sister Anastasia instead of Marie. After Anastasia’s untimely death, Marie is compelled to take her sister’s place as Granado’s fiancée, unaware that he had been captivated by her all along.
The anime is directed by Takayuki Kitagawa at LandQ Studios, with Masakazu Sunagawa as assistant director. Kenta Ihara handles series composition, Akiko Sato provides character designs and serves as chief animation director, and Kujira Yumemi composes the music.
The confirmed cast includes Rena Motomura as Marie, Daiki Hamano as Count Granado, Minami Tanaka as Anastasia, Ryohei Kimura as Louisphon, Yoko Hikasa as Mio, and Sayaka Ohara as Ryu-Ryu. An English-language version of the manga adaptation by Chikage Nakagura is available through Pocket Comics.
