The One-Armed Vengeance

Elara was the biological daughter of the Vance family, but she was framed by the fake heiress Amber, resulting in her family sending her to a correctional facility where she lost her left arm. After her release, she was forced into an arranged marriage with Andrew Whitmore, the "simpleton" son of the Whitmore family—only to discover that his condition was all an act. The truth eventually came to light: Amber had stolen Elara's identity, forged the paternity test, and even pushed her grandmother