Netflix's highly-anticipated new time slip romance series, 'A Time Called You', has unveiled its main trailer and poster. 

A Korean remake of the Taiwanese hit series 'Someday or One Day', 'A Time Called You' follows the story of Jun Hee (played by Jeon Yeo Bin), who is whisked away into the past one day and ends up in the body of a high school girl named Min Ju.

Jun Hee's strange encounter with time begins after the tragic death of her lover Yeon Jun (played by Ahn Hyo Seop) in the year 2023. While deep in mourning, a strange cassette tape finds Jun Hee, containing a song which transports her to the past. 

Now in the year 1998 and known as the high school girl Min Ju, Jun Hee begins to experience various emotions toward Si Heon, who looks exactly like her deceased lover. Meanwhile, Si Heon's best friend In Kyu (played by Kang Hoon) has feelings for Min Ju, complicating matters. 

Meanwhile, many fans immediately noticed familiar voices in the background while watching the main trailer for 'A Time Called You'. Viewers suspected that the OST featured in the trailer was sung by NewJeans, raising anticipation for a possible new ballad OST from the popular girl group. 

'A Time Called You' is coming to Netflix worldwide on September 8.