
After her painful divorce, Na-yeon finds herself struggling to rebuild her life while caring for her son, Dong-jin. Having recently faced a business failure, she is burdened with financial and emotional challenges. At this vulnerable time, a junior colleague in need of a place to stay asks to move in, leading to an unexpected living arrangement where four individuals coexist under one roof. The dynamics within this unconventional household begin to unfold, marked by personal desires and complicated interactions.
Hyung-cheol, one of the housemates, makes an attempt to pursue intimacy with Min-ju, but is firmly rejected, leaving him feeling restless and frustrated as he struggles to find purpose during this uncertain period. When everyone else leaves the home, only Na-yeon and Hyung-cheol remain. As Hyung-cheol falls asleep, Na-yeon contends with her own stirring feelings, and in a moment of vulnerability and desire, she finds herself indulging in a private act while thinking of Hyung-cheol.
The following morning brings an unexpected twist when Hyung-cheol wakes up, thinking the noises he heard were from someone else, and is shocked to discover Na-yeon's actions firsthand. Overwhelmed but unable to resist her own emotions, Na-yeon initiates an intimate encounter with Hyung-cheol, just as Min-ju returns home to find them together. That night, the tension culminates in a heartfelt confession to Dong-jin, setting the stage for the complex emotional journey ahead for all four housemates.