Kassy has dropped a rainy, cafe teaser video for "Tock Tock".

In the teaser, Kassy sings a preview of her upcoming romantic ballad that compares someone's feelings to the pitter-patter of rain. "Tock Tock" drops on July 2 KST. Her last release was "When Love Comes By" this past April. 

Watch Kassy's "Tock Tock" teaser video, and let us know what you think in the comments below.