The End of the World Breaks Out, Everyone Around Me Is Dead

When I woke up, everyone around me was dead. I thought I would be alone from now on, until I received a call for help from an old classmate. Since I am not alone in this world, I decided to save my classmates. Then find a safe place and live well. But as time went by, I discovered that this is a truly dangerous place in the apocalypse. In order to survive, I had to embark on a journey again, and finally learned the desperate code behind the apocalypse. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.