Survival in the Doomsday: from Sleeping to Death to the Strongest

Lin Shu, a bad student, died suddenly in class. When he opened his eyes, he found that he had been transformed into a doomsday novel! At the beginning, I was chased by monsters and all I could say was "Mother!" The system that claims to be the most powerful is just a decoration. On the way to fight monsters and upgrade, she just wanted to ask: Can I still quit this class?