“Only For You” is definitely R&B , a relentless dance jam that is dressed up in K-Pop clothing. The beats are one part sultry and another part pleading. The two members want you to know that they're in this only for you. The problem with “Puzzle” is that it sounds a lot like “Only For You,” probably because …
Read this article:
[MV & Album Review] TVXQ – 'New Chapter #1 : The Chance of Love'