On December 7, Sohyun posted a few photos on her Instagram with the caption, "This is a photo from a few years ago. HyunA unnie sent a coffee truck for the staff of 'The Delivery' film. Thank you Unnie!"
In the released photos, Sohyun is seen taking a photo in front of the coffee truck that had photos of HyunA and herself during the time they were promoting as 4minute.
On the truck, HyunA left a message saying, "Thank you for growing this well - From HyunA unnie."
Additionally, HyunA left a comment on the Instagram post saying, "I'm proud."
This is the first time HyunA has been active on social media after her breakup with Dawn on November 30, after dating for 6 years.