I Have an Upgrade System

Lin Lu spent eighteen ordinary years. Although he had already passed the second grade of middle school, he always believed that he could change the world. The reason, of course, is because I have a system that was unblocked when I was eighteen! Lin Lu didn't read much of the textbooks, but she read a lot of novels. With the system, wouldn't she just casually reach the top of her life? "Ding, it has been detected that the host's age meets the requirements, and the upgrade system is starting." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.