Jae-hee, a devoted housewife with a miserable life, decides to end it all; after failing to hang herself, she plans to kill her cheating husband; while seeking another method, Jae-hee discovers a perfume that could change everything.

Jae-hee uses the magical perfume to become young and beautiful; Yi-do, an eccentric fashion designer, needs a last-minute model; Jae-hee fits his clothes perfectly; despite personal dislike, Yi-do hires her for the day, unaware of her transformation.

Jae-hee coerces Yi-do into hiring her as his housekeeper; her years of housewife experience make her exceptional at cleaning and cooking; Jae-hee strives to become a model once again.

Min-suk, a famous idol, is voted as Yi-do's new muse; despite Min-suk's popularity, Yi-do refuses to work with him due to their history; Jae-hee auditions to become a model for Ji-na's agency.

The 2019 E-stream New Model Casting Call begins; Ye-rin and Jin-kyung compete among talented aspirants; Joon-yong obtains Jae-hee's high school yearbook and is shocked by her past appearance.

Ye-rin fails the audition due to Yi-do's harsh grading; MS Entertainment offers her an idol position, but she declines; Ye-rin asks Yi-do for another chance to prove herself as a model.