LOL, this was the first time I saw the trailer, it had me rolling like buffalo, literally! 

It's like I'm watching BIG all over again, with a tint of Gaksital because of Shin Hyun Joon ssi and Han Chae Ah ssi. I'm guessing this will really be a fun show to watch. 

Here's the official poster (kinda reminded me of ISWAK wedding):

And here's the trailer:

Trailer 1

Trailer 2