
On August 7, tvN’s official social media channels shared several photos along with the caption, “We first met 10 years ago, and now we want to walk together for all the days ahead. Please support the first step of our marriage.”
The released images showed Yoon Doojoon in a tuxedo and Kim Seul Gi in a wedding dress, with the text, “Yoon Doojoon ♥ Kim Seul Gi, August 17, 2025 (Sunday) 9:20 PM.”
An additional post featured an image resembling a real mobile wedding invitation, reading, “INVITATION. In the name of love, the two of us wish to unite and bear fruit. Please join us to bless the start of our journey. Groom Yoon Doojoon · Bride Kim Seul Gi.”
However, the invitation was actually created as part of the promotional campaign for tvN’s upcoming drama “O'PENing 2025 – The Battle for Cat Custody,” which premieres on August 17 at 9:20 PM.
The drama follows a soon-to-divorce couple locked in a heated dispute over custody of their beloved cat. Marking Yoon Doojoon and Kim Seul Gi’s first reunion in a decade, the series will see them portraying a married couple of five years on the brink of separation.



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