Billionaire’s Regret

Five years ago, Max was ambushed and saved by Chloe, who sacrificed herself to protect him, leaving her with a permanent injury in her arm. Five years later, they unexpectedly reunite, and during an argument, Chloe's old wound flares up, raising Max's suspicions. Chloe joins the company, but her overly controlling mother strictly forbids her from dating and even photoshops her into photos with muscular men to ward off suitors. At work, Chloe constantly faces harassment from the director. Max is convinced she is his savior and prepares a hefty diamond ring as a reward. However, the director instigates his cousin to impersonate Chloe and claim credit. Max falls for the lie, badly hurting his true savior. After the truth comes to light, the villains are brought to justice, and the two finally resolve all misunderstandings, welcoming a long-overdue reunion.

Synopsis from DramaGo.