As the train rumbled on, a criminal act unfolded before the eyes of a young boy. Despite his kind-hearted inclination to intervene, the boy was powerless to act. Nevertheless, he felt an unwavering desire to protect every single passenger on board. Suddenly, an inscrutable elderly man appeared, brandishing a sword with mastery, thwarting the attackers. The boy was spellbound by the man's remarkable aura and resolved to emulate his exceptional strength. Thus, commences the boy's quest to perfect the art of fencing and become the old man's apprentice. This is a mesmerizing tale of fencing and its ability to safeguard all that one holds dear!