This is a short drama about a wealthy family, featuring a sweet romance that blossoms after an arranged marriage. Eleanor, whose mental age is stuck at eight, suffered abuse from her stepmother and stepsister, Winnie, since childhood. Although she was supposed to marry the tycoon Sullivan as ordered by her father, a jealous Winnie pushed her into a swimming pool on the eve of the wedding. Winnie then took Eleanor's place in Sullivan's wedding car. Meanwhile, Eleanor—unconscious after falling into the water—was rescued by Grayson Randolph, a wealthy tycoon feigning disability; she mistakenly ended up in Grayson's wedding car and married him instead of Winnie.
For three years, Grayson had pretended to be paralyzed from the waist down to deceive his scheming father and his illegitimate half-brother, Green, while secretly plotting to reclaim control of the corporate group. Initially, he was deeply suspicious, believing his wife to be Winnie—a pawn planted by his father—and even demanded that Eleanor wear a mask and follow strict rules for their cohabitation. However, he was eventually moved by her pure and kind nature: she asked for nothing more than an endless supply of pastries, worried about his "leg injury" and massaged his legs, and—when he was locked in a terrifying, dark room—risked injury to climb out a window, catch fireflies to dispel the darkness, and keep him company from just outside the door.
