"Why am I still going?"
"There's no point in being here."

These are the last words of our protagonist Ishiyama Akinori as he is attempting to commit suicide because of the terrible life he lived. However, soon after he spoke these words, a huge earthquake erupts and knocks Akinori unconscious.

As soon as he wakes up, he is greeted with this unknown apocalyptic world in which he meets a crying little girl named Ayase who follows Akinori until he reluctantly picks her up and swears to protect her at all costs. A man with no ambitions trying to protect a little stranger from this hellish post-apocalyptic world. Where shall they go from here?

Chapter 0 is where the story begins