Zack Braun mistakenly believes Zoe Reese's sister, Elly Reese, is his savior and insists on marrying her, but Elly rejects him, thinking his status is ordinary. To support her animal rescue center, Zoe marries Zack in her sister's place. However, Zack leaves on their wedding day and disappears for three years. Zoe, seeking income, becomes Zack's private doctor, leading him to realize she is his wife, and he grows to cherish her more. Elly, jealous and aware of Zack's wealth, attempts to reclaim her position. On the day Zack proposes to Zoe, Elly reveals their true identities, causing Zack to choose her. After many complications, Zack finally discovers Zoe is his true savior and pursues her again, ultimately reuniting with her.
