Jung Eun-ae, whose life goal is to marry Jin-hong—an undeniably perfect boyfriend—and to build a family anyone would envy.

Growing weary of her boyfriend, who fails to fill her loneliness,

she finds herself drawn to her senior, Lee Jae-won,

who, despite his seemingly indifferent demeanor, is surprisingly considerate.

Despite knowing that he is a married man,

she begins to feel an attraction toward him,

and in order to have him,

she consciously—or perhaps unconsciously—starts to shatter her own moral beliefs one by one...