Doomsday: Starting with Debt Collection

[Apocalypse + No System + One Female Lead + Mild Superpowers + Evolution + Saving Others]

A simple debt-collection job triggers the apocalypse and brings the living dead after him.

A search for medicine saves a beautiful policewoman, who stays by his side from then on.

A simple outing with a beautiful woman ends with him saving a mysterious man.

Where are you, the person who matters most to me?

I'll find you, even if I have to search to the ends of the earth.