This is truly one of the best movie. The acting, the story line, the recording timing, the camera angles/techniques, and the background music are on the highest level of quality. I especially enjoyed the character development between the two brothers. It was very smoothly done. As for Do Kyungsoo (D.O), I knew him as an idol but while watching this movie, I forgot he was an idol ans my UB!! This is his best acting work yet! I 10/10 would like to recommend this, you won't regret it I promise. But don't be fooled by the trailer and be prepared to cry a river because this movie is not just a comedy ; ).