College student Sang Nian (Sang Yunling) unexpectedly arrives in a cultivation world, where she becomes a female supporting character everyone avoids, and is bound to a rather unreliable system. To complete her mission, she has no choice but to approach the secretive Xie Chenzhou. Together, they journey from Qingzhou into the Xiaoyao Sect, standing side by side through secret realms, trials, and the turmoil in Medicine King Valley. She repeatedly earns his trust, gradually teaching this aloof young man to rely on others. But as the Gathering of Heroes approaches, Sang Nian's origins, Xie Chenzhou's true identity, and an old case involving the immortal sects all come to light. Their journey toward each other has only just begun.