“Their 10 yrs age gap is non-existent”: Fans react to Yoo Yeo-seok and Chae Soo-bin’s offscreen chemistry in When The Phone Rings’ Episode 9-10 BTS

Still from When The Phone Rings (Image via Netflix)
Still from When The Phone Rings (Image via Netflix)

On January 2, 2025, MBC Drama released behind-the-scenes footage from its ninth and tenth episodes of the mystery romance drama When The Phone Rings. The footage featured the protagonists Baek Sa-eon and Hee-joo, played by Yoo Yeo-seok and Chae Soo-bin, respectively.

The duo's offscreen chemistry struck a chord with the fans, as they did not appear awkward with each other even when filming their intimate and romantic scenes for the show. They were instead seen chuckling and laughing together behind the scenes.

Yoo Yeo-seok is forty years old, while Chae Soo-bin is thirty. Despite the ten-year age difference in real life, audiences were impressed by the couple's off-screen connection in When The Phone Rings. As a result, people flooded the internet with their reactions to the couple's humorous bond off-camera. One X user commented:

“their 10 yrs age gap is non-existent loll”

Many other mixed reactions for Yoon Yeo-seok and Chae Soo-bin’s chemistry were seen online. While some said they were “cute,” others claimed that the duo’s bonding was another level.

“the staff going “ahhh so cute what should i do?!! so cute!!!” why is she me,” stated an X user.
“My honest reaction: I TRIED SO HARD NOT TO SHIP YOU TWO I REALLY DID I TRIED TO RESPECT YOUR PERSONAL LIVES BUT SERIOUSLY I SWEAR. YOURE DOING IT ON PURPOSE,” remarked a fan.
“LR. this is actually my first time seeing actors mess around like this behind the scenes. Usually, after a bed scene, actors are kinda awkward, but these two are on another level,” a fan wrote.
“It looks like I'm here disturbing their married life,” commented another fan.

Some said that the couple in When The Phone Rings appeared to be in a "10-year marriage," while others humorously suggested that it seemed as though they were interrupting the couple during behind-the-scenes moments.

“GOOD MORNING TO ME????? THIS IS HONESTLY INSANE MY SMILE WAS FROM EAR-TO-EAR LIKE LITERALLY BEAMING it's so natural they play around even when they're not filming MY HEART IS MELTING. even the staff was like: CUTEEE! THIS IS CRAZY!!,” stated an admirer.
“fr and they acting like theyve known eo all life,” another X user stated.
“10 yrs age gap but more like 10 years of marriage life,” commented a viewer.
“i feel like i'm interrupting something...” wrote another fan.

When The Phone Rings’ finale is scheduled for January 4

The MBC network's romantic suspense K-drama encompasses twelve episodes. The last week will broadcast episodes 11 and 12 on January 3 and January 4, 2025, respectively. The drama stars Yeon Yoo-seok and Chae Soo-bin in the primary roles, accompanied by several supporting characters.

After the airing of episode 10, on December 28, the drama achieved record viewership thanks to the gripping storyline twist and proposal sequences.

Since its premiere on November 22, the ratings of When The Phone Rings have been consistently increasing. The ninth episode garnered ratings of 6.4% and 6.0% (nationwide and Seoul), while the tenth episode surpassed its predecessor, achieving ratings of 7.5% and 7.4%.


Fans can watch the episodes of When The Phone Rings on Netflix. As of this writing, ten episodes are available on the streaming platform.

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Edited by Tiasha
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