Who Made Him so Infatuated?

The twin sisters' original family led to a miserable life. The elder sister fell from a glamorous career into an abyss because she fell in love with someone she shouldn't have loved. My sister had to meet her husband, and she had all his love and affection, which allowed her to be cruel and unscrupulous, and she did not hesitate to trample and crush her several times... When did infatuation become wrong? When someone hurts him, he can only get a word of disdain, because he is too infatuated. Here are the calm and reserved CEO, the sinister but dedicated IT elite, and the seemingly gentle but all-around psychiatrist. Who will be their true destiny... Two lines, two protagonists, telling the life of a pair of twin sisters, looking forward to the love of the little cuties.