How Should I Survive in This Doomsday?

"I am just an ordinary student. I thought my world was simple, but what about this sudden doomsday? I just want to live, and for this I am willing to pay any price." The changes in the world forced this student to become more mature, but as he went along, he gradually discovered that the end of the world was just a scam, and he began to fight against the people behind the scenes. There was no reason for this, he just wanted to live. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.