After failing to get into Myungsung University for the second time, Ah-Young lies to her family, claiming she has been accepted. When her cousin Jung-Eun discovers the truth, she offers Ah-Young a way to keep the lie alive: attend university in her place and pretend to be her. Reluctantly stepping into someone else’s life, Ah-Young finally gets a taste of the college experience she has always dreamed of. But her new life takes an unexpected turn when she meets Min-Sung, a mysterious freshman hiding a secret of his own: he enrolled at the university under a false name. As the two grow closer, their carefully guarded identities begin to unravel, drawing them into a complicated relationship shaped by secrets, deception, and their shared desire to escape the realities of their own lives.