The Phoenix's Rebirth for Revenge

"Reborn on the day she returns to the marquis' household, Freya Scott kills Rachel Tucker—the woman who once tried to murder her—accidentally saving the poisoned Crown Prince, Chris Foster. To conceal his health condition from the public, Chris follows Freya to Juset, where she works to purge the poison from his body and prevent the tragic fate she once endured. "

"Seven years ago, Luna Sawyer was pregnant when she discovered that her boyfriend, Samuel Payne—who was battling cancer—was secretly the heir to Payne Corp in Reydon. Samuel was offered a deal: if he broke up with Luna, they would pay for his treatment. But deeply in love with her, he rejected the offer, unaware that Luna had overheard the conversation. Determined not to hold Samuel back, Luna silently chose to leave—only to be presumed dead in a car accident. "