Grandis Granva is an antagonist turned a supporting character from Nadia and the Secret of Blue Water. At first she wants to steal Nadia La Arwall's mystical jewel Blue Water, with the help of her two henchman Hanson and Sanson and their transforming tank Gratan. However, she ends up having a change of heart after she wants to help Nadia, Jean and Captain Nemo's crew to defeat Gargoyle and Neo Atlantis. She appears in Worst Hero And Villain War Ever.
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