After being betrayed by both her boyfriend and her best friend, Zhuo Li heads to Luyuan Resort to heal her broken heart. There, she is captivated by the cold and aloof Xie Yuzhou and proposes a contractual arrangement worth one million a month. Believing she has the upper hand in this game between adults, she unexpectedly discovers that he is actually the president of Shengrong Group, a powerful business tycoon. After his identity is exposed, Xie Yuzhou refuses to let her walk away. As they navigate interference from exes and workplace turmoil, their transactional relationship gradually blossoms into genuine love through mutual protection. Lowering her guard, Zhuo Li turns what began as a game into a romantic journey of two hearts choosing each other.