After Su Wan dies, she binds herself to a System and travels through small worlds to complete the tasks given to her by the Host.
World One: The underachiever rises to greatness and turns the aloof, unapproachable top student into her one and only lover.
World Two: The heroine's goal is to win over the head of a top-tier family. The hero makes a bet with the heroine's older brother and goes to train at a camp under an assumed identity. Because he's so capable, he's selected to apply for a position as the heroine's personal bodyguard, and she unexpectedly chooses him. She plans to win him over slowly, step by step, but little does she know that this stern and imposing tycoon from a wealthy family is secretly a hopeless romantic, already at max level. As they spend day after day together, he wildly imagines all kinds of things and falls for her early on, taking the initiative to love her.
