Percival and his grandfather Varkis lived in a desolate borderland, leading a leisurely life. When Percival was about to turn 16, his grandfather asked him if he wanted to go on an adventure and see the magical world outside. Although Percival refused the adventure on the grounds that he had to accompany his grandfather, he still yearned for adventure in his heart. At this time, a man named Elonshid came to the door and killed his grandfather. This man was Percival's father. In order to find out the truth, Percival embarked on a journey...