Shi Yin has been neglected and unloved by her family since she was a child. She is a well-known good girl in the capital. Unexpectedly, being good is just a disguise for her. She is determined and decisive at every step. After learning that her childhood sweetheart fiancé openly cheated on Shi Qinghe, Shi Yin... No quarrel, no fuss, after learning that Han Zhan was forced to marry by his family, he deliberately tried to attract Han Zhan's attention, trying to use Han Zhan to help him escape from the prison of the Shi family, and get back the design drawings snatched away by Shi Qinghe, and legitimately inherit the Shi family. Han Zhan first noticed Shi Yin because Shi Yin was so obedient and unique. He could bear it even if his fiancé publicly put a hat on her. It happened that the family was forcing a marriage, and Han Zhan wanted to find a vase to marry and display at home. So after "accidentally" meeting Shi Yin on a blind date, Han Zhan took the initiative to deceive Shi Yin and marry Shi Yin back home. With the increasing contact between the two, Han Zhan went from not paying attention to Shi Yin to unconsciously paying attention to him. When Han Zhan discovered Shi Yin's use of him, he had fallen deeply in love with Shi Yin and willingly became a knife in Shi Yin's hand.