Lightning DegreeMasters of Lightning Knives; 비뢰도; Lightning Swords; 飛雷刀; Меч разящего грома; Phi Lôi Đạo; Lightning Degree; Mestre das Lâminas Relâmpago

Ryu-Yeon lost his father to a disease when he was only 10 years old. With the skill he learned from his father, he could carve wood into wonderfully intricate sculptures. One day, after completing the sculptures of his parents, Ryu-Yeon was greeted by an elderly man who was impressed by his sculptures. The old man saw promise in Ryu-Yeon and asked him if he would like to become his disciple. As Ryu-Yeon had nowhere to go and wanted to make the most of his life, he accepted the old man's offer.