Gregorio (グレゴリオ Gregorio) is the veteran Admiral of the Second Fleet of the Armada. Oldest among the five Admirals, he has served the Valuan Empire from the time of the previous Emperor, as his loyalty to the Empire is very high. Boasting iron wall defense, he's said to be the Empire’s best when it comes to defense in battle. Because of his desire for peace and the issue of the present Empire's conquest, his faithfulness to Teodora has been waning.