Boy Who Fell in Love with a Wolf Girl

The story is about a girl who was raised by a wolf pack after she was thrown away by her evil mother who wanted to be queen. As she grew up, she met a boy in town and the two fell in love however, the boy did not know that his step mother was the mother of the girl and she was his sister. The evil step mother wanted to keep the girl a secret from the king and the boy and wanted to kill her but the wolf pack ate the step mom.