Information About Original Character

Rina Hiragi was adopted by Hiragi family. When she was 9 years old, the world was destroyed by an unknown virus. Her younger brother , Rolo was killed by a vampire. Since then, she make a promise to herself. She will protect her friend from any harm even the cost of her life.
But when she awake, she found herself in a coffin and a racoon treat her for her clothes.Then she found out many people can use magic. Okay, magic......... WHAT???!!!
What will happen to this young girl?Will she found love??

(Image, video, owari no seraph and twisted wonderland do not belong to me.)