The Happiest ep4

Severe personal gipijeung, depression, insomnia, and hallucinations duyeon suffering. She is just as helpless in real life. 
The goal of life is happiness, do not feel her life. Awesome day all night girl group. One day a man named Nicky moved next door comes duyeon. Is divided among each other to say, but it does not even familiar with his next-door neighbor and neighbor among women.
However, the coincidence between the two getting closer ... know what destiny