Park Nam Jin, otherly known as Star from Purple Bells is living her life busily, yet happily prepairing for her debut with her fellow members. Rookie group, Blue's Core is also prepairing for their debut under BANG entertainment. BANG entertainment is one of the most competitive signers, they only sign the best singers, with the best looks. Leader, Park Lin Joo, of Blue's Core hasn't exactly been the nicest person towards her fellow members, causing her to break away from the group only weeks before their debut. Meanwhile at Yahji Entertainment, the members of Purple bells have been doing wonderfully in prepairing. Until the Manager calls Star into his office.