Happy Sisters(2017)

Happy Sisters is a South Korean drama following two women whose lives intersect through marriage and betrayal. Yoon Ye Eun has spent seven years as a devoted housewife, enduring her in-laws' coldness while supporting her husband's thriving business. Her world shatters when she discovers his infidelity. Meanwhile, Yoon Sang Eun, who runs a struggling piano institute, faces mounting debt. She accepts a contract marriage proposal from businessman Choi Jae Woong, who offers to clear her financial troubles in exchange. As both women navigate the consequences of their marriages—one fractured by deception, the other built on calculation—they forge an unexpected bond. The series explores themes of resilience, female friendship, and second chances, blending domestic drama with moments of dark humor as these sisters find strength in each other.