Before, dragons and Vikings were sworn enemies. If one dragon is found on one of the territories of the Vikings, it will be killed on the spot, slaughtered, or tortured in any means necessary. The same things are done by the dragons to a Viking found in their nest. He will be killed on the spot, tortured, or get feasted upon.
Not only Vikings have this point of view with the dragons but also their gods. In Asgard, Odin is in charge of their wars against the dragons. No mercy is shown upon them. During every war, he will always be in front of the line, craving for the enemy's blood on his sword.
Years before Thor was born and before Loki was taken from Laufey, Odin had a daughter named Anthurist. Like her mother, she has golden hair and eyes as blue as the azure Midguardian sky. She has creamy white skin and almost has the same design of the dress her mother loves to wear. She is a brave, open, soft-hearted and intelligent lady. But, because of her father's busy schedule fighting the dragons, he always fails to notice what his daughter has.
That's what she thought.
She never knew that Odin has always thought of her and always wanted to see her every time he rose from his great slumber. Whenever he heard her achievement in her studies, or whenever she beats a champion in her school's tournament or exercises, he would like to rise from his throne and give his daughter a great, big and proud embrace. He just couldn't do this because of his pride that he would never learn to swallow.
Because of Anthurist's want of refuge, she went about the golden forests of Asgard. There, she saw a dragon trying to fly. She took her dagger and hid behind the nearest rock she could find. When she saw the dragon faced another direction, she quickly attacked. The dragon noticed her but before it could tackle her to the ground, it winced. Anthurist saw this and stopped. She watched the dragon wince in pain. She found this puzzling for she couldn't see anything wrong about it. Later, she found out that its wings were damaged. Because of her soft heart, she aided the poor thing. They became friends since then. Because of their friendship, she knew more about dragons and found out that not all of them were as fierce as the ones she had read from her book and from what her father always told her.
Time came when the greatest war yet has fallen upon Asgard against the dragons. It was Odin who proclaimed this for he thought that a world without dragons would be better. When Anthurist heard of this, she quickly went to her father and tried to stop him. Odin found it a disgrace that his daughter pitied the dragons. Anthurist, who can no longer control her temper, told him that she's on the side of the dragons and no one can stop her and that one of them is her friend. Odin was bewildered and mad at the same time. Because of his anger, he slapped Anthurist, who was still rationalizing with him. She fell on the floor because of her father's brute strength. She stood up after piecing out what had happen. It was only then that he saw her eyes blaze with anger.
"Odin", she started. He was even angrier when he heard her daughter disrespect him in the worst of ways a child could disrespect her parent. Right before he can raise his voice on her, she started talking again.
"I never had a father who is as heartless and as merciless as you."
Odin stared at her. He was so surprised on what she said. Before he can act, Anthurist whistled then a dragon burst out from his window. She rode on its back and he knew that with that single whistle, they have taken her away from him, never to return.