There is a girl called Eun Ji. She knew her mother and sister were alive but didn't know where they were. Slowly, she met Bigbang. She decided to join them. That's when she had to face a lot of challenges. There is a cold guy called Sung Jae. He always treat Eun Ji cold-heartedly Anna, a bully, always wanting to fight with Eun Ji. Will Eun Ji still continue to be with Big Bang or will she give up?