Vicious Female Supporting Role Development Plan

A modern girl named "Nian Wan" wakes up and finds that she has traveled back in time to "Si Di", a female supporting character who died early in a novel. What makes her collapse the most is that the system that brought her here gave her the task of "Vicious Female Supporting Development Plan" (referring to developing herself). After that, "Nian Wan" started a series of "adventures" in order to survive in this world and complete the task.