Strangeness Descends and the Ruthless Killing Begins!

[No Virgin + No heroine + No bloody plot + decisive killing. Yesterday I was just an ordinary student, but a strange disaster forced me to learn to be cruel. The world has changed, and the ugliness of human nature in the face of possible life-threatening dangers at any time is vividly displayed. Believe me, good people don't live long. A weird bus and a weird village took me into an unknown world.