One of the truly interesting main characters in the series, Hyoga appears calm, collected, and unemotional. Beneath the surface, however, he is passionate and devoted to his ideals. The one person that forever lives in Hyoga mind is his deceased mother. She died when Hyoga was still very young, having drowned during the shipwreck of a doomed cruise. The ship sunk into the icy ocean, where the extreme cold kept Hyoga's mother from rigor mortis. Throughout the Sanctuary arc, Hyoga is shown to visit his mother periodically by diving into the waters.