Actress Chae Soo Bin sparked dating speculation with her co-star Yoo Yeon Seok after an Instagram story set the fandom abuzz and was immediately taken down.

The 29-year-old star who recently appeared in the drama When The Phone Rings, shared a video on her Instagram story of herself at a dog shelter.

The caption said "On Magpie's New Year," a reference to a children's song for the Lunar New Year.

But it wasn't the video content that drew fans' attention— it was a voice belonging to a male heard off-screen.

The story was quickly deleted. However, fans were able to share the post on social media platform X (formerly Twitter).

The voice sounded familiar to fans, many of whom were already low-key shipping the on-screen couple due to their undeniable chemistry.

One user commented: "CALLING VOICE ANALYSTS PLEASE!!! MY DELULU EARS ARE SO FAMILIAR WITH THAT VOICE BUT I'M TRYING TO NOT PUTTING MY HOPES HIGH."

Another said, "She deleted the story, that's enough proof."

There are also more grounded theories making the rounds despite the hype. Others say that Chae Soo Bin could also have deleted it to protect the privacy of a non-celebrity who accidentally appeared in the face.

Chae Soo Bin and Yoo Yeon Seok have remained tight-lipped about the rumors, and it remains to be seen whether the alleged couple will comment on their supposed relationship.