Quick Travel: Defeat Mary Sue

A story about a cannon fodder named Yue Lin in a certain book, who was bound to the Defeat Mary Sue System 0721 by a self-proclaimed M79 Nebula and traveled to various worlds. PS: Most of them travel through books, and occasionally they come to the real world. The tentative worlds are: Youth Campus, Blood Riding, Internet King, Entertainment Circle, and the End of the World. Well, okay, that's it. Oh, by the way, I am lazy and in the late stage of cancer, I am lazy and in the late stage of cancer, I am lazy and in the late stage of cancer, I have to say important things three times. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.