Rebound for the Billionaire, Destiny for HimEpisode 4

MIT genius Serena endures eight years of grievance and marries Elias, the developer of the quantum jump device, to save her boyfriend Julian, who died in a car accident. Upon the completion of the instrument, she travels back eight years in time first. She saves her lover, exposes the conspiracy, regains control of the core technology, stays with her true love, and breaks free from her oppressive eight-year fate.