[talk] Undercover High School This poster came out cute

Looking at it, it seems that Jin Ki-joo's first love as a child, who plays the teacher in the drama, was Seo Kang-joon.

But Seo Kang-joon went undercover at school as a high school student undercover.

The age difference is not right... I just keep thinking about it by myself and I think we get more and more involved.

I'm also looking forward to their love line.