The premiere of "Reunited Worlds" was held on the 18th in Mokdong SBS with Yeo Jin-goo, Lee Yeon-hee, Ahn Jae-hyun, Chaeyeon and director Baek Soo-chan.
Baek Soo-chan introduced the drama as 'a healing romantic drama which is pure and innocent'.
In "Reunited Worlds", Seong Hae-seong (Yeo Jin-goo) dies in an accident 12 years ago and comes back alive. It's neither a time-slip drama nor a science fiction drama. Watching how he gets along 12 years later is the watching point of the drama.