A lamentably tragedy that made the two young couple separated from each other was forced to live their lives as a new different people; Mina, who gave up her dream to be a Black Swan and Chaeyoung who has no memories from the past, will once again meet in an unexpected time in an unexpected place.

After years that the two have separated, they will finally meet again of what particular occation. Will they able to fix what is broken or just move on with their lives and forget everything in the past?

A frustrated writer who won an award for his book that topped the Korea's time best seller now struggling to come up another idea. Will he able to write again?

A Gangster who is longing for the love and affection of her sister finds no other way to take her back but to fight those who stole away from her fist to fist. A Ballerina whose only dream is to compete to the final stage and be called Black Swan found her way to the person named Cub.

After the disbandment of the group, all members have different ways to go through with their lives. But the three of them will cross their paths and have a conflict together along with their journey. Where this love triangle will bring them and what mystery each characters will be facing?

After a successful comeback of the group, Twice, with their new soundtrack entitled "Dance the Night Away", two of the members were lost in the island where the MV was taken. Will the entertainment itself will be able to find the two of their artists? or will they be lost forever?