Lily is now in a challenging situation. Her mischievous twin, Noona, who tried to trap a wealthy man through pregnancy, unfortunately passed away. Chance, desperate to care for his late brother's child, mistakenly believes Lily, the innocent and proper librarian, is her wild twin. To safeguard the baby she holds dear, Lily decides to伪装 as Noona. In this unconventional plan, she agrees to pose as her sister and allow Chance to think of marriage as a way to provide a home for the child. It's a difficult decision, but Lily is willing to go along with it, all for the sake of the baby's well-being.
