

Joseph, heir of a top-tier family, is forced by his grandfather—who threatens to kill himself—to agree to marry the eldest daughter of the Smith family. But Joseph refuses to marry a stranger. Determined to choose for himself, he changes his name, goes undercover as a nanny in the Smith household, and sets out to evaluate the looks and character of the family's four daughters.

The Ruskin family's adopted daughter was born a fool.Reduced to a pawn, she was forced to marry in another's place. She married the city's blind business tycoon.Bound by a single contract, the two staged a charade. She played the idiot to survive; he feigned blindness to lie low. Sharing a bed on their wedding night, they probed each other's secrets.Unbeknownst to all, she was the mysterious overlord controlling the lifeblood of commerce; while he, enduring in silence for five years, advanced step by step, all to stir up a storm of revenge.