I Transmigrated into a Novel Set in the Past and Went to College

This story has two male leads. Please don't read it if that's not your thing.

Mu Wenge and the System are attacked by an unknown energy during a jump through time and space.

So the System, running low on energy, takes him to a world generated from a novel.

There, he becomes a stepping stone for the protagonist at every stage of this period drama.