Libra: The Scales

Misty was the eldest child of her family, she had a very small family of four members, her mother, father and her younger sister.
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Misty was an introvert girl, who was having nothing other than homework, projects and studies in her life, she was a very simple girl who was in high school and soon was going to get graduated, she didn't have friends.
In contrast her sister May was totaly different form her she was an extrovert girl who have plenty of friends and loves going outside.
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But one night changed both of their lifes, that night something mysteries happened due to which she and her sister entered to a totally new world.

The people and their way of living was totally different. But the biggest twist is that Misty got seperated from her sister and she doesn't remember herself.

When Misty opened her eyes she found herself in a woody house, and an unexpected woman enters who claimes to be Misty's mother.

What is going to happen in the coming story? Who is that woman?
Know the answer of every question in the story.