'Flower Grandpas Investigation Unit' released teasers of hilarious interactions between Super Junior's Heechul, Lee Soon Jae, Jang Kwang, and more!

SEE ALSO: Heechul, Lee Soon Jae, and more attend the script reading for 'Flower Grandpas Investigation Unit'

The teasers show Heechul unknowingly drinking coffee mixed with Jang Kwang's spit and enjoying it along with Lee Soon Jae's fetish for 19+ rated videos, bringing further anticipation for the comedic aspects of the show.

Lee Soon Jae, Byun Hee Bong, Jang Kwang, Lee Cho Hee, Park Eun Ji, and Heechul star in 'Flower Grandpas Investigation Unit' which is directed by Kim Jin Young and written by Moon Sun Hee. It is a comic drama of young detectives who transform into their 70-year-old selves one day and struggle to find a way to return to their twenties.

The drama will premiere following the conclusion of the variety show it got its inspiration from, 'Grandpas Over Flowers', on May 2 at 9:50 PM KST.