Based on the Prussian Dreyse needle gun, the world's first bolt-action light rifle, Dreyse transformed 19th-century warfare. His design enabled rapid firing from prone positions, shifting battlefield strategies towards marksmanship and endurance, contributing to Prussian victories in the Wars of German Unification.

Dreyse stands 187 cm (6'2") tall and weighs 98 kg (216 lbs), presenting a tall, muscular, and notably robust figure among his peers. He possesses short ginger-brown hair, fair skin, and intense dark green eyes, typically conveying a serious focus.

He values meticulous preparation and strategic foresight, considering thorough planning essential for victory. While acknowledging his superior battlefield performance, he dedicates his capabilities to protecting others and achieving collective success without arrogance, maintaining a consistently focused and disciplined demeanor.

Within the story, Dreyse fights with anthropomorphized antique guns ("Musketeers") in a resistance movement against the authoritarian World Empire. He employs his "Absolute Nobility" mode to enhance combat abilities against modern weapons, safeguarding allies and contributing to restoring hope in a post-apocalyptic world.

In the mobile game *The Thousand Noble Musketeers: Rhodoknight*, Dreyse is a Brave element playable unit. His Soul Gun Ability deals area-of-effect damage scaling up to 3x his attack power to all enemies. His Support Skill temporarily boosts allies' attack power by up to 20% for 10 seconds. Passively, he gains increased attack and defense during quests set in Germany, with an additional defense boost activating when his health drops below 50%.