When the Lin family went bankrupt, the son-preferring parents fled overnight with their son, abandoning their seemingly slow-witted five-year-old daughter Lin Xiaoman by locking her in a wardrobe. Zhou Guifen, a nanny who had not been paid, was tough-talking but kind-hearted and decided to raise her. Unknown to everyone, Lin Xiaoman is actually a top-tier powerhouse with unmatched combat skills and extraordinary intelligence. She plays dumb to protect her foster mother and rises step by step. Years later, her wealthy birth parents come back with their scheming adopted daughter, mocking and suppressing her. Lin Xiaoman stuns everyone by revealing her dual identities: the provincial top science student and a legendary elite hacker. Her biased birth parents are filled with endless regret.
