Taemin, Onew and Key are in Barcelona to enjoy themselves while taking photos for the travel guide. The weather in Spain is great and Onew and Key agree to play in the deep, crystal clear ocean. What they don´t know is that Taemin won´t join them because he doesn´t know how to swim properly. Feeling a bit sad and left out, Taemin walks around exploring by himself. While strolling down the esplanade Taemin spots a young woman who is able to swim like a butterfly. He´s fascinated by her and asks her to teach him how to swim without really thinking about the consequences.