tvN's 'Goblin' teased a trailer for an upcoming behind-the-scenes special series of stars Gong Yoo and Kim Go Eun, along with Lee Dong Wook and Yoo In Na's kiss scene!

In the preview, the main cast, Gong Yoo, Lee Dong Wook, and Yoo In Na can be seen fooling around on set and having a fun time.�In addition, viewers can get a sneak peek on how CG was used in production.

The special, divided into two episodes, airs February 3-4 at 6:40 PM KST!