This was promoted as one of the best movies of the season. If you have high expectations, you should stop here. If you're looking for hot men in swimsuit then, you should go on. I approve that too but, it's not enough to make me like the whole movie. The characters are plain and unrealistic even if all the cast did their best. In some shots, it looked like the actors were holding back just to fit the role. The growing relationship between the swimming group members it's what I enjoyed the most, also with the wonderful and funny acting of Seo In Guk. As for the main plot.... meh. It was so predictable. I think everyone can say what will happen right after the first 10 minutes. But, I must say all the shots were well planned and I also liked the locations very much. The "band" part was a bit unnecessary tho. I think they could have found a more interesting way to insert the 3rd main character, which lacked of personality and credibility compared to all the others (even the supporting ones) which showed a strong motivation and (somehow) intense feelings.