Or, more accurately, they counter the human race's self-destruction.

This magic is a deterrent. I will not cast it recklessly.

You mean Angel was keeping them in check?

and his existence itself became a deterrent.

Because he's become a person who deters villains and evil?

Thou, the seven days clad in the Great Trinity, come forth from the circle of constraint.

You must be strong enough to fight crime.

Have the puppets join the soldiers that are guiding the citizens, as a deterrent.

Having made a pact with the Counter Force when alive, I became a Guardian after my death

and acted on behalf of humanity's Counter Force, fighting those who disrupted the world's balance.

I heard that, after their deaths, Guardians become part of the Counter Force that protects humanity.

Jammers that keep Life Fibers in check.