Okay i think its official

According to this JTBC Hush starring Yoona and Hwang Jung min will start filming in mid august until mid January next year and the premiere date will be on December.#Yoona #JTBCHush pic.twitter.com/EEes7N5Aqi

— ⁵yoh¹yolk⁵ ⚯͛ (@soonkyupsal) July 3, 2020