Foul Legacy

**Foul Legacy** 黒い武器 (ファウルレガシー) is an innate technique possessed by Ukiyo Yashiki. It allows him to shape and retract various black constructs from his body called **Legacies**.

## Description

This technique allows the user to condense cursed energy within their own body, and transmute it to project simple black constructs. As long as the Legacies are still attached to his body, Ukiyo can alter its shape and properties, but once it's been pulled out, its form will stay that way. If Ukiyo is severely incapacitated, his Legacies will disintegrate alongside any constructs he created.

Legacies take on a consistency similar to a sort of compound metal, having tensile strength well beyond titanium, a resistance to heat unlike anything tungsten has shown, and the hardness of diamonds. Though durable in, Legacies can still be destroyed when struck with sufficient force, and their creator is able to break them apart without any apparent difficulty.

As Legacies are formed by condensed cursed energy, Legacies are Cursed Tools by default, which can be seen and interacted with by non-sorcerers.

## Usage

Foul Legacy rivals things like Blood Manipulation in terms of versatility, as both allow the user to create whatever they need. And Tonbo, while taking over Ukiyo, was able to imbue black rods with cursed energy and freely levitate them in the air. If the target is hit by the rods, the cursed energy flowing through them can be used to deal further damage. The Devouring Deep ability can generate explosive cursed energy from the rods once they've impacted the target as well.

Foul Legacies can be controlled individually or combined together, the Legacies can be shaped into a variety of forms. Because the high-density cursed energy is in a condensed state, it can be pulled and stretched into a smooth and flat consistency, as well as freely manipulated into any other shape. Satoru Gojo theorized that there is a limit to how long the Legacies can maintain a certain shape, though this was never confirmed. A Legacy can also wrap around the user's body to form a protective shell, shown with Ukiyo's Bulwark Dam ability. Though highly durable, this defense can still be broken by attacks that overpower the Legacy's natural durability. Ukiyo most commonly manifests them as black rods that function not only as weapons, but also demodulators for high-frequency cursed energy signals. Ukiyo is able to create and transmit his cursed energy into these rods, or whatever constructs he makes, for a variety of purposes. When used in this way, it is commonly called **Black Receivers**. (黒き受信器*Kuroki Jushinki)*

Once formed, the user can transmit cursed energy to these rods from across vast distances, though for best results, they must be nearby and at a high elevation. Though cursed energy being sent to these receivers can be sensed, a skilled user can prevent their location from being discovered by constantly changing the frequency of their cursed energy. Offensively employing receivers from afar carries a risk, as those with sensing capabilities can trace the transmitted cursed energy back to the user when pierced with one. When receiving cursed energy, the black rods noticeably heat up.

By stabbing an opponent with the rods, the user can transmit their cursed energy into the target's body, disrupting their own cursed energy and throwing off their movements. The user can fully immobilize the target by stabbing them with multiple rods, as well as prevent them from molding additional cursed energy by piercing their pressure points. Provided the user is close enough, they can potentially control the target's movements, though this can be resisted if the target's own cursed energy is powerful enough. Aside from being stabbed, simply touching the rods when they're charged with cursed energy can apparently also incur negative effects, though Six Eyes wielders are seemingly immune.

   Having the ability to produce and summon a myriad of special black rods, Ukiyo's most common tactic with them were to instantly summon black rods at various sizes and in great quantities to impale his foes with tremendous force, enough to pierce Grade 1 Cursed Tools. Sending in a barrage of those rods was enough to destroy small cliffs. Ukiyo's rods were durable enough to evenly clash with Choso's Blood Manipulation. The rods were noted for having the ability to drain the cursed energy from anyone pierced by them, and storing them within for the user to collect and utilize the stolen cursed energy. The massive amounts of cursed energy that could be gathered allowed Tonbo to create six gigantic Legacy pillars tall enough to pierce the clouds, and successfully create the Six Crimson Ray Formation.