
The innocent and energetic female lead Chun, along with her best friend Ga-hee, are living at her boyfriend’s house and struggling to make ends meet. However, they are gradually drawn into the aimless lifestyle of the “Three Abandoners” generation (abandoning marriage, home, and job). However, Chun cannot stop worrying about her future. One day, she has the opportunity to break into a large mansion and begins to make detailed plans to become a “perfect parasite” with Ga-hee and her boyfriend. Little do the three know that terrible consequences and a storm of hardship await them ahead. The innocent yet dramatic story of the three will gradually unfold!