Lu Hanchen's background: The sole heir of the Lu family. As a child, he witnessed his mother betraying the family for love and eventually dying tragically, forming the twisted belief that "emotion is weakness and power is everything."
Su Yan's background: He was born into an ordinary but warm intellectual family. His parents were liberal and cultivated his independent personality and artistic talent. When he was in college, his family suffered a sudden change (his parents died in an accident or were seriously ill). In order to bear the huge debts and medical expenses, he gave up his dream of studying abroad and became forbearing and tenacious.
Lin Qingyu's background: Descendant of a declining aristocracy, his family is left behind and dependent on others. He deeply understands the hypocrisy of upper class society and is good at pretending and performing.
Gu Huaizhi's background: Lu Hanchen's college classmate and friend, a top surgeon/lawyer, who witnessed Lu Hanchen's paranoia and Su Yan's pain throughout the whole process.
In order to save Bai Yueguang in his heart, business emperor Lu Hanchen uses his substitute lover Su Yan, who looks exactly like Bai Yueguang, as a mobile blood bank and organ container. When Su Yan died and left, Lu Hanchen was shocked to realize that he had already fallen in love with this living soul.
