The chemistry between Byeon Woo-seok and IU is once again becoming a hot topic online after the actor shared a cozy new two-shot with his co-star that instantly sent fans into meltdown.

On May 9, Byeon Woo-seok uploaded several photos to Instagram along with the playful caption:

“Aww, they say episode 10 is even more fun today.”

The newly revealed images show Byeon Woo-seok and IU sitting across from one another in what appears to be a relaxed filming break. The two stars smiled warmly while maintaining comfortable eye contact, creating an atmosphere that many fans described as “straight out of a romance drama.”

And unsurprisingly, the internet completely lost it.

IU showcased her signature elegant visuals by pairing a black knit top with a flowing brown sheer skirt, effortlessly radiating sophistication and soft charm. Meanwhile, Byeon Woo-seok gave off a calm and polished aura in a classic suit, perfectly matching the emotional tone of the photos.

While the pictures themselves were simple, fans quickly became obsessed with the natural chemistry between the two stars. Many pointed out how relaxed and genuine they looked together, further fueling ongoing discussions about their on-screen compatibility.

Comments rapidly flooded social media and online communities, with reactions including:

“Already episode 10? Time flies.”

“The visuals are absolutely insane.”

“This is the best couple pairing right now.”

Others joked that the behind-the-scenes photos were becoming just as romantic as the drama itself.

The pair are currently starring together in Perfect Crown, MBC’s ongoing Friday-Saturday romance drama that has steadily gained attention for its royal setting, emotional tension, and fairy-tale visuals.

Set in an alternate version of modern-day South Korea operating under a constitutional monarchy, Perfect Crown follows the complicated romance between Seong Huiju, a wealthy chaebol heiress who seemingly has everything except noble status, and Grand Prince Ian, the lonely son of the king who struggles under the weight of royal expectations and class barriers.

IU plays Seong Huiju, a woman trapped between privilege and frustration, while Byeon Woo-seok portrays Grand Prince Ian, a royal figure desperately seeking freedom from the rigid hierarchy surrounding him.

Since the drama premiered, viewers have consistently praised the emotional tension and visual chemistry between the two leads, with many fans already calling them one of the strongest K-drama pairings of the year.

In particular, seemingly small moments — lingering eye contact, casual smiles, and behind-the-scenes interactions — have repeatedly gone viral online, with fans closely analyzing every new interaction between the actors.

And the latest Instagram upload only intensified that fascination.

Some netizens even joked that the promotional photos looked “too romantic,” while others admitted the pair’s chemistry feels so natural that it’s becoming difficult to separate the actors from their characters.

Whether intentional or not, the photos have once again amplified excitement surrounding Episode 10 of Perfect Crown.

Because at this point, viewers aren’t just tuning in for the royal romance storyline anymore — they’re also completely invested in the undeniable chemistry between Byeon Woo-seok and IU themselves.