Ellen Joe is a laid-back Shark Thiren that attends school in New Eridu who hates activities that require energy. Despite her personality and aloofness, Ellen is a significantly popular student at the school, though she prefers spending time with fellow students Ruby, Monna and Lynn at karaoke bars, arcades and ahopping. Her usual personality is one of Loofness, she seems to be bored and tired all day, she isn't specially very friendly whit anyone and she dosen't let anyone touch her tail.