

As the only daughter of the Merrick family, Kirsty Merrick bears the responsibility of marrying into the prestigious Bartley family to lead the Merrick family to new heights, as carefully orchestrated by her mother Evanna Taylor. Kirsty successfully secures a betrothal with Morgan Bartley, the playboy son of the Bartley family's second heir. Unknown to Kirsty, Morgan has been secretly involved with Jess Merrick, Kirsty's only friend who grew up with her in an orphanage. Years later, when brought back to the Merrick family, the kindhearted Kirsty could not bear to abandon Jess, and thus pleaded with her parents to take Jess in as well. Now, Jess has begun an affair with Kirsty's fiance Morgan. To get back at Morgan, Kirsty designs a plan to seduce and intoxicate Nicolai Bartley, the young CEO of the Bartley Group, leading to the start of a dangerous "underground affair."

While sweeping the streets, cleaner Carleigh Quinn encounters Roderick Sawyer stepping out of a luxury car. He hands her a bank card, explaining he's terminally ill and wants to help her. Surprisingly, Carleigh claims she can cure him, but three renowned doctors accuse her of being a fraud. When Roderick suddenly collapses, everyone rushes to his home where the doctors admit only the legendary "Sovereign of Scales" could save him. Carleigh reveals herself as this mystical healer with mastery across dozens of fields, cures Roderick, and leaves. Later, her fiance Kieran Harrell delivers divorce papers, and at their wedding, publicly abandons her to marry Aurora Quinn instead. Roderick arrives with a marriage proposal, announcing to everyone's shock that Carleigh is the revered Sovereign of Scales.

Since childhood, Melanie Llyod has lived under the shadow of loss, her mother gone and her stepmother intent on securing a vast inheritance. Raised in a world of fragile comfort, Melanie grows weak and dependent. But after a sudden accident, Ashton Llyod reappears in her life, urging her to find strength and independence. The emotions they've suppressed for years begin to surface. Though they share no blood, they've lived as siblings for 18 years. But in the 19th year, everything changes… Kate Llyod, determined to steal Melanie's fiance, relentlessly tries to expose the secret connection between Melanie and Ashton. Amidst the growing misunderstandings, Melanie decides to bury her feelings and honor her engagement. Ashton, too, chooses to distance himself, focusing on his responsibilities. But when a twist of fate leads to a murder attempt, Ashton is left gravely injured and hospitalized. At last, both must confront their true feelings for each other. Yet, the challenges ahead are far from over…