In a Korean music school there are 3 best friend:Jonghyun,Minho and Onew. They've got a band,SHINee,and they want to debut at the concert for the end of the year,but they are only 3 and they gotta be 5 for sing at the concert. The 2 exchange student from California,Key and Taemin,love singing an dancing and they are looking for a band.  The SHINee can be finally complete? Or the difficultly of communication will stop them?