Best friends, Lovers, or Nothing? [YongShin FanFic]

What if Park Shinhye is not an actress? What if she's only a normal person? What if Yonghwa and Shinhye were childhood friends? But were separated for 13 years? By then, Yonghwa became a member of a rock band named CNBLUE. And so Shinhye became a fan of them, still remembering Yonghwa as her best friend, never forgett...