"Why I kill this people...?. A boy is holding a bloody knife in his hand. You brutally took action with a family

"I freed them!" They won't be trampled by this stupid world! Isn't it?" The boy shouted.

"That's right!" A mysterious voice was ringing in his ears.

"If you kill more people! Then the world will return to the beginning, right!" The boy shout louder

"Yes, it's really nice!! A ha ha ha"

And that word... ushered in the dark ages of humanity. Devil's seeds are growing all over many world territories.

A 21st century full of death, without a trace of benevolence.