Dream of the Annihilation Girl DOTAG

The world is at peace.
The strong assert control over the weak guiding them into a life of responsibility and justice.
The League of Nations ensures stability in the world with wrongdoers receiving their due punishment.
And heroes who overcame great adversity and achieved great feats will without a doubt receive their Happy Ending.
In this world a man with no foundation will meet a girl whose sole purpose is annihilation.
And their twisted tale will commence.