Mischievous

Loki wasn't always evil. Ten years before he tried to take over the Earth, things were going better than they usually are for him. He had found someone who actually loved him, Eira Raulsdatter, a Lady of Asgard who saw him as a nice person with good intentions. They soon had a child on the way, but with no explanation, when the child was born Odin stole it from the pair, and cast it off to Earth. All Loki saw was black hair and green eyes, he didn't even know if his kid was a girl or boy.

Winter S. Edwards is a troublemaker. Everything she does is a prank or a trick or something bad. The administration at her school is dying to catch her red-handed, but whenever something goes wrong, she's in class or so they think. When the news alerts her of a villain from another world trying to take over the planet, she's interested. Partially because Loki's cool, he reminds him of her, but also because she thinks she could do it better and would like to tell him so herself.

Disclaimer: Doesn't follow all of TDW plot line.
I don't take credit for anything Marvel related