The True Dragon of Domination

in this story, Issei Hyoudo did get his Sacred Gear but Yama Hyoudo, Issei Grandfather knew about it all the Time since he isn't from this world. Yama Hyoudo are From far deep into the Verse,A planet look alike to Earth But Many Advanced Technology around it.Space Warships around the Planet, Orbital Cannons aiming out to the Deep space.The planet been control by A survivor GERMAN Brigade from WW2 which Turn into a Powerful Faction called The Imperial Republic Of Nebesnyy Drachen or know as TIROND and Yes....This Story do have Connections with my other Story /The tale of the son of Commander of Devil Brigade/.And Sadly Yama pass away from unknown reason leaving his Secret somewhere save....Only for Issei to figure out by himself for to discover the secret