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Starring Yeo Jin Goo, Lee Yeon Hee, Ahn Jae Hyun, DIA's Jung Chae Yeon, and more, the drama tells the story of Sung Hae Sung (Yeo Jin Goo), a boy who goes missing at 19 years old, then shows up in front of his childhood friend Jung Jung Won (Lee Yeon Hee/Jung Chae Yeon) 12 years later.�

The teaser gives a preview of the tragic moment when Jung Jung Won loses her close friend Sung Hae Sung in what seems to be a car accident as well as a glimpse of Sung Hae Sung's return years later. The production staff has also revealed a new still cut of Sung Hae Sung and Jung Jung Won reuniting for the first time, which you can find below.�

You can catch 'Into the New World' and see the full story when it premieres on July 19 at 10PM KST on SBS!