Urassaya "Yaya" Sperbund takes on the role of J, a dedicated young woman supporting her boyfriend Kao, portrayed by Nat Kitcharit, as he pursues his dream of becoming the fastest cup stacking competitor globally. However, their relationship faces challenges when J decides to end things, prompting Kao to confront his shortcomings and navigate the complexities of adulthood. As he embarks on a journey of self-improvement, Kao must grapple with learning essential life skills and finding a way to win back J's trust and affection. The narrative explores themes of personal growth, resilience, and the dynamics of relationships, offering a compelling look at how ambition and maturity intersect in the pursuit of happiness.