A True King In DxD

A True King In DxD,

A kid from earth single-handly takes out a terrorist on a bus, and because of that gets the chance of his dreams. A chance to be born again in a world of his choosing, with wishes to back him up. He will become a True King with the ultimate harem, power and skills to back him up. All those that stand in his way will beg for mercy after his done with them.