Hilda

Hilda is the Guardian of Odin, God of Wisdom, and the Ruler of a land called Asgard. Her magic can freeze an enemy temporarily, but her new armor can protect those she truly cares for. She once was the control of an evil item called the Nebelheims Ring, but the help of Aaron and his friends, she was freed and created an crystalic armor in the name of Odin.

Trivia

 * Hilda's homeland of Asgard is located in a very cold place where snow comes all year round, but stops for some sunlight every now and again.
 * She cares for her teammates after the end of the Asgard chapter in Aaron's Adventures of Saint Seiya.