Angel's Revenge(2014)

Angel's Revenge is a Korean drama about a woman who abandons her calling to seek vengeance. Lee Seon-yoo is on the verge of becoming a nun when she learns her sister Jin-yoo was murdered by Jang Tae-jung, a calculating social climber who married into wealth. Determined to destroy him, Seon-yoo marries Ji-seok, the weak-willed heir to a powerful family—and Tae-jung's brother-in-law. Now embedded in the household, she leads a double life: the perfect daughter-in-law by day, a ruthless schemer by night. As Seon-yoo orchestrates her elaborate plan for revenge, she must navigate family politics, jealousy, and her growing feelings for Ji-seok. The series explores how far one woman will go to avenge her sister's death, blending melodrama with themes of justice and redemption.