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Hugo is a serious, grim man. He is the father of Emizel. His first few appearances in the plot show him to be somewhat ruthless in his political tactics, ordering for the extermination of Prinnies, the hunting of the Hades party, and even broadcasting the false death of his own son to supposedly hide the embarrassment of his failure to defeat the rebels.
When later formally introduced to the party, he shows good naturedness toward them, deeming them "brave, yet foolish, rebels" and praising them for their tenacity in reaching him. He speaks warmly to Valvatorez despite their long-held rivalry, and becomes boisterous and aggressively enthusiastic at the idea of battle. When unable to exert his full power, however, he shows a far more dour and depressed side to his personality, quickly growing miserable as he speaks of the shameful manipulations he's suffered.
[/spoiler]It is revealed that he fought with Valvatorez a long time ago back when Vavatorez was still known as a Tyrant. Valvatorez states that they fought for days on end and were unable to settle their match. Hugo mentions that Valvatorez was the only man able to cause an injury on his body.[spoiler]
(Source: Disgaea Wiki)
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