

Born into opulence, a wealthy family's infant daughter was unknowingly exchanged with the offspring of an inept collector. A relentless quest to reclaim their own led to a startling revelation—both youngsters, now students at the same institution, had developed into bitter rivals.

When Tanner Gary was elderly and needed a bone marrow transplant, he discovered his son wasn't his biological child. Later, he found out his assistant, Hans Nolan, was actually his wife Lorry Gary's first and true love. The son was born to Hans and Lorry, and they named him Harry. In order to seize the entire Gary Group, Hans and Lorry killed Tanner, but Tanner was unexpectedly reborn and traveled back to the day before his wedding. After his rebirth, Tanner vowed to stop being a pushover and to cherish the people around him. However, his fiancée Lorry still arrogantly believed that he would remain her loyal lapdog. She first checked into a hotel with Hans, showing no remorse, and even used the upcoming wedding as a threat against Tanner. Then, at the wedding, she confessed her love to Hans, only for Tanner to expose their affair on the spot, causing the wedding to fall apart. Her family, caught in the ensuing scandal, faced a crisis and was on the brink of bankruptcy.

Harold and daughter Demi are critically injured in a riot,with Demi fighting for her life. When the hospital faces a Type A blood shortage, his wife Violet signs away the life-saving blood to save Jack, son of her first love Nate, who claims the boy has leukemia. She abandons her dying daughter without hesitation.Heartbroken after six years of devotion, Harold resumes his hidden identity as heir to the powerful Summit Group. He saves Demi and disappears. Finding Harold's abandoned phone filled with loving messages and final farewell, crushing regret overwhelms Violet.