I Transmigrated into a Book as the Female Side Character, Then Made a Move on the System

After a car accident, I got bound to a System.

The System said I could return to the real world once I completed my missions.

I agreed.

After finishing the last mission, I smiled and held out my hand to the System.

System: ?!!

I grabbed the System tightly. “The mission is complete.”

Theme: Don't forget to save yourself