What, You Have a Problem with Me Being the Savior?

The world is crawling with pests, wretched vermin clinging to people and sucking their blood.

Xu Lingming has always wondered: how can this problem be solved once and for all?

Damn it, I'll kill every last one of you! I'm Xu Lingming!

If I kill all the bad people, there will be no more crime or injustice!

Killing is easy, saving lives is hard. If killing can protect life, what on earth could stop Xu Lingming from saving people?

Nothing! Absolutely nothing!

Let the kindly Savior save, save, save them all with overwhelming hope!

This is the story of a madman who doesn't know he's mad, a Savior who sweeps through countless worlds and keeps saving them.