Sienna Parker (Sienna), a 22-year-old college student, is driven to a corner by dire financial circumstances. To pay for her father's cancer treatment and her overdue tuition fees, Sienna makes the desperate decision to become the sugar baby of Arthur Sterling (40 years old), a successful and charismatic property mogul in Jakarta. For six months, the transactional relationship runs smoothly. Arthur Sterling, a widower, falls deeply in love with Sienna and intends to marry her, even asking Sienna to move into his main residence right away. In the midst of Sienna's confusion and dilemma about accepting the proposal, fate suddenly takes a sharp turn. At her campus, Sienna is stunned by the appearance of Adrian Vance (23 years old), her first love and ex-boyfriend from high school who abruptly vanished four years ago without a trace. That meeting reignites unresolved feelings of longing, anger, and old passion. Adrian reveals the bitter truth that his move to London back then was forced upon him by his scheming stepfather, who deliberately isolated him to seize his late mother's fortune. Now, Adrian has returned to Jakarta to claim his rights to his mother's company based on her last will and testament. That evening, a horrifying reality crushes Sienna when Arthur Sterling comes home venting his frustration. Arthur mentions that the stepson attempting to reclaim the company's throne is none other than Adrian Vance. Shocked and stricken by panic, Sienna is forced to lie and claim that she doesn't know Adrian. Now, Sienna is trapped at a deadly crossroads: stay for her father's financial survival with Arthur Sterling, or embrace Adrian Vance's true love once again, a choice that risks destroying all three of their lives the moment she steps into the Sugar Daddy's main residence.