

Seth Levy, a brilliant teen swapped at birth by the family maid, is finally found by the Levys at seventeen. Craving love, he devotes himself to them—only to be betrayed by his adoptive brother, Harvey Levy, who frames him for plagiarism.During the live broadcast of “Ultimate Brain,” Seth is publicly humiliated, and in a furious outburst, the Levys accidentally kill him. But he wakes up back on set, moments before the betrayal, and vows to make Harvey pay.

The princeling of Lonbardie, Chuck, made a bet with his friends that he would win over a working girl named Wendy within a month. To test Wendy's sincerity, he pretended to be a brain tumor patient to deceive her. Wendy worked eight jobs a day to earn money for her boyfriend's treatment. However, one day while Wendy was working at a KTV, she happened to encounter Chuck celebrating his birthday and revealed the details of his masquerade of being poor and sick to his friends. Wendy stood in the corner, greatly shocked.

The renowned businesswoman Freya retired and went into seclusion after her company became the largest enterprise in the city and went public. She adopted three children, including Wendy. After the three graduated from college, Freya planned to reveal her true identity to them. However, she suffered an unexpected brain hemorrhage. During her illness, Wendy stood by her side, working hard to save money for medical expenses. After Freya recovered, she helped Wendy solve various challenges.

After a car accident had left Mia with brain damage, she witnessed her disabled father cheating with their maid, Ruby Lewis. Mia told her mother, but no one believed her. Her father and Ruby called her a liar, and Ruby even pushed her, causing Mia to hit her head. However, the fall fixed Mia's brain. She tricked Ruby and her father into revealing their true, ugly selves. When the truth came out, her mother finally understood her mistakes and begged Mia to forgive her. But Mia was done with them. She walked away, ready to start a new life where she was finally free.