As the eldest daughter and heir to a powerful multi-company empire, Lingling has always shouldered the weight of her family's expectations. Now, approaching her thirties, her formidable grandmother issues a final ultimatum: marry before turning 30 or forfeit her inheritance and position within the family business. Desperate to meet this deadline, Lingling reluctantly agrees to the arrangement, only to be confronted with an unexpected choice: Orm Kornnaphat-her younger sister Milk's ex-girlfriend. Caught in a whirlwind of conflicting emotions, Lingling is torn between her desire to love Orm and her loyalty to her sister. Orm, while harboring her own secrets, has never revealed the true reason for her breakup with Milk and keeps her feelings closely guarded. Despite this, an undeniable magnetic pull forms between Orm and Lingling. As Lingling and Orm navigate their complex relationship, a deeper connection begins to develop. However, with family pressures, lingering misunderstandings, and the looming deadline, Lingling must decide whether to follow her heart or sacrifice her love for her sister's sake. Entwined Destinies explores the delicate balance between love and duty, and the choices that define our lives and relationships.

Skilled spies Ling and Namtan embark on a mission to take down the corrupt businessman Mr. Thant during a high-society event. Their plans are complicated when Ling becomes romantically entangled with rising actress Orm, challenging her loyalties. As tensions rise, the manipulative spy Mark seeks revenge, threatening to expose their secrets. Caught between love and duty, Ling must choose between her mission and her heart, leading to a dramatic confrontation where loyalties are tested, and the true cost of betrayal is revealed.