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Twin Sword Vagabond — A rock-bottom dungeon cleaner who spent his days grinding trash mobs in modern dungeons somehow ends up with mythic-class swords. And two of them, no less —

Momonga Iris

Prologue

The Holy Sword and the Cursed Blade

Holy Sword "Lightbringer"

A holy sword once wielded by a hero in the other world, before it fused with Earth. The spirits gathered stardust, an ancient dragon forged it within its own body, and with the ancient dragon's death, "That Which Beckons Light" was born.

Super effective against undead, spirits, evil entities, demons, and magical creatures. Strong resistance against attacks from dragon-kind. Recovery effects for stamina, magical power, and life force. Immunity to mental magic. Nullifies intermediate-rank and below magical attacks.

Bonds with its owner's soul, and rejects use by anyone other than its owner.

Extremely durable, but the edge is blunt — so dull that even if your hand slipped, it couldn't cut skin. Its slashing power comes from a magical blade infused into the sword; rather, its true forte is a sword strike that "bludgeons" with magical shock. This is a function befitting a holy sword designed to destroy undead, demons, and magical creatures — beings against which simple slashing attacks are ineffective.

As a secondary benefit, it is extremely effective for "pulling punches," allowing the wielder to freely execute attacks calibrated to strike without killing. It's said that the hero who once wielded this sword virtually never caused a fatality in combat against other people, thanks to this trait.

It possesses divinity and sanctity stemming from the circumstances of its creation, but in truth, there is no requirement that its wielder be a person of good nature. The hero, its previous wielder, simply happened to be someone with a strong sense of benevolence — Lightbringer itself has no will of its own.

A hand-and-a-half sword with a blade length of one meter and a blade width of eighteen centimeters.

The guard features an ornate hook — a practical fitting the hero commissioned a dwarven artisan to attach. When not in use, it is a dull iron color. When in use, it emits a pale blue glow.

Cursed Blade "Kagetsu"

A cursed blade born from the distortions of the World Fusion in 1999.

It originated from an unsigned blade carried by a nameless samurai. After cutting down bandits in the mountains, the samurai discarded the broken sword on the spot.

Using this unsigned blade as a vessel, countless memories of battle converged along with the distortions of the World Fusion, crystallizing into the cursed blade Kagetsu.

It takes the form of a katana, but its true nature is a cursed artifact that draws forth "a future where the target has been severed." Actions like swinging the blade or thrusting it are ritual formulae that activate its curses. Since it is a curse born from the world's distortions, anything that exists within the world can be "severed" without exception.

It floods the user's mind with countless battle memories, forcibly transforming the wielder into a "master." Additionally, because it is a cursed artifact, it has no scabbard — it activates its curse by fusing with the user's soul, so if anything, the user themselves serves as the scabbard. Outside of combat, it is stored within the body (inside the soul), and to use it, the cursed blade must be drawn forth from within.

Like Lightbringer, the blade itself has no will, but the effect of the "battle memories" flowing into the user causes it to semi-forcibly execute optimal actions during combat, overriding the user's own intent. This is strictly a matter of "having such a property" — the blade itself does not possess a will or inclination, such as a thirst for blood.

Blade length of two shaku three sun (seventy centimeters), crimson-black edge, black guard, black hilt. The decorative cord at the pommel loosely wraps around the user's wrist. The nature of this cursed artifact — fused with the user's soul — manifests in this cord; for instance, even if the blade is thrown or dropped, pulling the cord returns it to the user's hand in an instant. The cord stretches and retracts, but it will not allow the blade to separate from the user beyond what is necessary.

When combat ends, it appears to dissolve into particles and "melt into the surrounding space," but it is in fact being stored back inside the user's body.