Jiang Che, a young fencing genius, encounters a strange "ghost swordsman" during late-night training - his ancient swordsmanship makes modern techniques helpless! The ghost is actually the Meiji ronin Saku Himura, whose "flying sword style" is incompatible with modern fencing concepts. Jiang Che was shocked to realize that the flaw was hidden in the conflict between "etiquette" and "ideas." Under the guidance of the mysterious "Sword Art Concept Map", he embarked on the road of integrating ancient and modern times: using modern "distance control" to dismantle the ancient "sword energy", and using "defensive counterattack" to fight against "powerful attack". In the end, a "winless" sparring match that combined modern thrusting and traditional finishing allowed the ghost who has been obsessed with it for centuries to understand the "true meaning of swordsmanship" and dissipate into starlight, leaving behind a reborn fencing hall and a "comparison lesson between ancient and modern swordsmanship" that will inspire future generations. Only by respecting tradition can we transcend tradition.