Seems like the characters are getting more and more amusing in every teaser releases.

In the newest teaser of the upcoming tvN comedy drama 'Flower Grandpas Investigation Unit', the elite and youngest detective, Park Jeong Woo (Heechul) is shown ordering the strong grandpa Jeon Kang Suk (Jang Gwang) around by asking him to make a coffee for him.

Seemed annoyed, he spits into his coffee and provide gag to it. What will happen to these characters? Are you excited to watch this drama? Flower Grandpas Investigation Unit' premieres on May 2 at 9:50PM KST.