Can a guy and a girl just be friends without crossing that line?

Kwon Ji Yong and Lexi Park have been best friends for 20 years and counting. They never, at least that they know of, thought of crossing the line that could make or break them. What happens when jealous and heartbreak come in between them? Can they survive or will it be the end of 20 year friendship. 

Link to trailer http://www.youtube.com/watch?v=sySccNt0l1w&feature=youtu.be

Characters 

Lexi Jung/ Jung Soo In

Age: 24

Born in the states and lived there for the first five years of her life. Then moved to South Korea because of her fathers work. She has one older brother who is never around. Met Ji Yong at the neighborhood playground. Both went to the same grade, middle, and high school together. Now both in college together. Her major is writing and history. She loves to read and draw. When she is asked to she helps Ji Yong and his friends with their underground rap and dance battles. 

She has thought about if there could be more then friendship with Ji Yong but never said anything about it to anyone. Not even Ji Yong. 

Kwon Ji Yong/ G-Dragon

Age: 25

Upon first meeting Lexi he thought she was lonely. Been friends with her for 20 years. They been through everything together. First date, first kiss, and first heartbreak. He is a member of an underground group called Big Bang. He loves writing music and singing. When he wants to he sings to Lexi. Ji Yong asked Lexi to help with the rapping and singing. Mostly asking for her opinion. He to has thought about crossing the line and wanting more. Though he steps back and he hasn't told anyone. Most nights he spends the night with Lexi. 

Dong Young-bae/ Taeyang

Age: 25

He is close with Ji Yong and teases both Lexi and Ji Yong about being a couple. He secretly likes Lexi but doesn't want to hurt Ji Yong. Reason he can tell that Ji Yong likes Lexi. He is a member of Big Bang and he asks Lexi to help him with the dancing.  

Big Bang

The memebers of the underground. They all look up to T.O.P and G-Dragon. Lexi calls them by their stage names. She tends to forget names at times. T.O.P has graduated form college and teaches music to others. Daesung same age as Lexi but not that close with her he tends to keep to himself more. Seungri is the youngest and he is quick to catch onto things. Like he can tell that both Lexi and Ji Yong act like they are more then friends.