Qin Shu was framed by Wang Yilin, who was competing for a lab quota, and was nearly forced by a mysterious man. In a hurry, she stabbed the mysterious man unconscious, treated him, and took the necklace as a reward. Wang Yilin wanted to embarrass Qin Shu, but failed. She unexpectedly discovered that the mysterious man was Fu Linchen, the richest man in North City, so she pretended to be him. Qin Shu's stepmother worked at Fu Linchen's house and accidentally heard the news that Fu Linchen was going to marry Wang Yilin. She designed a plan for Qin Shu to marry into the Fu family, so Fu Linchen misunderstood Qin Shu...