Apocalypse: Is the Rebirth Plus System Not Taking Off?

The virus broke out, 80% of life in the world turned into bloodthirsty monsters, and plants mutated. Zhou Yan opened his eyes and found that he had returned to the day when the class beauty confessed his love before the virus outbreak. Nothing has happened yet, my family is safe, my brothers are by my side, and the people who love me are right in front of me. Just when Zhou Yan decided to use the advantage of rebirth to change everything, his mind suddenly heard that the system had been activated... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.