Worldwide Class Change: An Invincible Swordsman

In a perilous world teeming with monsters and demons, a young man finds himself unexpectedly reborn, armed with the potential to become a legendary swordsman. As humans strive to protect their homeland through class transfers, he embarks on a journey that begins with a humble D-level classification. However, fate takes a turn when he awakens a powerful system that amplifies his abilities beyond imagination. With each challenge he faces, his swordsmanship evolves, unleashing Sword Qi that astonishes allies and foes alike. Whispers spread through the ranks: how can his Sword Qi extend a staggering 40 meters? As he grapples with the mysteries of True Qi and navigates the complexities of this new realm, he must confront formidable adversaries and unravel the secrets of his own power.