2PM's Taecyeon, Seo Ye Ji, Jo Sung Ha and Woo Do Hwan made an appearance as they greeted fans.

Taecyeon said, "This project is special to me since it's thriller-based. We are still in the process of filming. The storyline itself is unique, it is about a group of teenagers who get caught up in a religious cult... I think this will be the last time I act in a school uniform."

SEE ALSO: Sanitation workers sort through 24 tons of trash after a mother accidentally throws away 24 Million KRW (,500) saved for son's surgery

Co-star Seo Ye Ji began, "I made so many mistakes while filming with Taecyeon," and shared a behind the scenes episode, "There was one scene where I had to slap a fellow student across the face. I got so into character that I found myself hitting the person for real."

Jo Sung Ha expressed some of the challenges he faced, "I don't personally attend church so it was difficult for me to portray various scenes of preaching at the podium and communicating with God. I even I had to reshoot some of the scenes."

Woo Do Hyun added, "I got injured while filming action scenes, but luckily they weren't life threatening."

Will you be watching these guys in 'Save Me'? The drama premieres August 5 at 10:20 PM KST!