Closing the Portal

King Proster's three children were all dear to his heart. He loved watching them grow up and teaching them about the world. So, when a demon shows up and threaten their lives, Proster is willing to do anything to save them. Except that his daughter Narda got there first.
Narda grew up listening to her father’s stories. She believes that she can stop this demon from causing destruction. She gathers what she needs and sets out on her mission. Will she be able to stop the demon?