Originally, Hydrax is an extremely dangerous cosmic entity that destroyed all of life on countless planets, but once when he was planning to destroy a planet, because Hydrax was too tired of having to destroy planets for millions of years so he wants some innovation. Previously, he despised all living things, usually attacks every creature he encounters and razes everything; he also doesn't like being controlled by others. But now he's less hostile and less arrogant; he is considered a Tsundere.