IU lost to Byun Woo-seok in the regram war.

While sharing the Grand Prince's Wife poster on social media, IU and Byun Woo-seok
We kept regramming each other.

In the end, IU was the first to declare, "I lost."
It is said that Byun Woo-seok savored the victory by even regramming that surrender post.

I can't believe they have this kind of chemistry even before the drama starts. I'm really looking forward to April 10th.