Survive the Mission of Quick Travel

In order to take revenge, I had to sign a contract with the [System] and complete the mission. What exactly do you do? It's simple, just survive until the specified time. At first, Suyu thought so too, but later he realized that it couldn't be that simple! Cinderella's stepmother, the reborn's enemy in her previous life, the one who killed her father, where will our protagonist go? What is another huge conspiracy?