After his family fell apart, the boy grew up independent, raising his younger sister on his own. Three years later, he returned, but just as he reunited with her, disaster struck. The person he had devoted himself to protecting fell into a deep sleep. To wake his sister again, the boy made his choice: he left the ordinary world behind, accepted his ticket to the supernatural world, and embarked on the road to kingship, determined to bring everything to an end at its beginning.