If you are looking for romance, then search for another manga/manhwa to read. Now. As of chapter 6, there has been no romance whatsoever. It's currently publishing so I don't know if there will be or not. Is there will be romance, I would probably drop this series because I can't really see the main character having a relationship.
Anywho, Teen Spirit is basically about a guy who starts off his music career with a suckish band. Then works his way up without them. Yep, he left the friends he had for 10+ years to go off alone and become a trainee in JBL. The story is boring and simple. The characters are typical moody teens (that piss me off to no end). The art is... fine. Not too good, not too bad. Regular shoujo drawing style. I wouldn't recommend reading this unless you want an one-day, no-brainer type story.