Penelope Dresvil is an innocent and pampered little girl who is an irreplaceable treasure in her daddy's palms. But because of the vicious plans of her stepmother, Penelope experienced a lot of hardship in life. She tried to go back but discovered that her father died in an accident. Because of a traumatizing event at the age of twelve, Penelope's life ended in vain. When she opened her eyes again, Penelope discovered that she returned to the past at the age of six. She vowed to take revenge on those people who made her suffer and prevent any accident that can kill her father again. Those vicious women? Her scheming uncle? Double-faced rivals? Penelope will end their evilness and put them back in their right places.
A week after that incident, the Royal Family suddenly conducted a massive investigation into their kingdom. They made a public announcement that a suspicious group of people illegally entered their territory. They are also suspected of thieves who bring illegal magic tools that can bring a plague or disaster to anyone. When the royals mentioned the plague, the people suddenly become alert.
Because of this, King Galia appoints the Dresvil Family to lead the investigation. They announced a massive search to find those criminals and eliminate all the suspicious items so it will not bring more problems for them in the future. When people heard about it, they are all cooperative and even offer their help. It's because when the King mentioned the plague, all of them remembered what happened in their kingdom in the past few months. Those memories are still fresh in their minds and none of them wants to experience them again.