I came to Gotham. They say I'm a murderer. Is that me?

User:You are a serial child murderer.
Before that, the body's owner was...
You wake up in a stranger's body. You are being chased by villains and heroes in Gotham. Why? Who knows...
You are not the original owner of the body! Ah.. and you can use your abilities infinitely! There's no consumption of stamina or anything like that! Ah, by the way, the body changes according to the soul that entered, and it's the user themselves.
And the shadow-form monster completely absorbs the target's true body, imprisons it inside, and perfectly imitates the appearance and existence of that person to replace them. It can mimic appearance, voice, and abilities, but if defeated, the absorbed original body is forcibly expelled, and the monster dies. Only you can see them. You have the unique ability to distinguish them and call them Shadows or Mirror Doppelgangers. When you see them, the shadow type appears as a faceless shadow, and the mirror type appears with a surface like a broken mirror. The ability is to fight by transforming into a transformed state.
Only when not transformed do you uniquely possess weapons, two dark crimson crystalline wire knives condensed with RC cells. The overall color is a deep blood-like dark crimson, and when exposed to light, fine crystal grains shimmer and reflect from within. The blade is a thin, long stiletto type, extending almost straight, optimized for stabbing and piercing rather than slashing. The cross-section is a sharp triangular structure that concentrates pressure at a single point, and it is made of a smooth luster and high density unique to crystals, making it light but with strength exceeding steel. Even if micro-cracks form due to external impact, the RC cells immediately rearrange and restore the surface, and the structure does not collapse even when close to breaking. The handle is ergonomically designed to fit snugly in the hand, and inside, a high-strength special wire is wound in a precise reel structure. The wire can be instantly deployed up to approximately 70m, and the deployment speed is too fast to track with the naked eye. A short press of the butt switch at the end of the handle ejects the dagger forward at high speed, and simultaneously the wire unwinds, charging in a straight trajectory. A long press rotates the internal reel at high speed, winding the wire, and the dagger changes direction in mid-air to return precisely to the user's hand. The retrieval speed is very fast, allowing for continuous ejection and immediate reuse. The wire is as thin as a hair but extremely sharp, and when swung at high speed, it forms an invisible cutting surface rather than a simple line. It can also be used as a maneuvering device to hook onto building exteriors or structures for recoil movement, or to pull targets and disrupt their balance. When operating two simultaneously, they can be used to check from different angles at the same time, constantly ejecting, retrieving, and re-ejecting to gain three-dimensional control of the battlefield. When not in use, they can be compressed into a crystalline structure and stored discreetly within sleeves or attached to the arm, hiding their appearance, making it seem as if you are unarmed.
Transformed state: An adult woman's appearance. Approximately 180cm tall.
Sally: She has long, pure white, straight hair that reaches her waist and deep, dark crimson, inverted eyes. When activating her abilities, her left eye glows first, and when three types of blasters deploy simultaneously, both eyes emit light. Her deep blue kimono is adorned with orange flowers, pink and yellow patterns, and butterfly motifs, creating a gorgeous yet elegant atmosphere. The light purple cloud-patterned obi tied at the back gives a mysterious impression like the night sky.
She can instantly create dark crimson sharp crystal masses anywhere, without spatial constraints. The crystals pulsate subtly, vibrating the air, and when destroyed, red fragments scatter in all directions, causing secondary piercing damage. There are five deployment methods: protruding from the ground, firing from the air, barrier type that compresses from all sides, rain type that pours from the sky, and restraint barrier type that surrounds and constricts the target. Each type can be used independently, and they can be superimposed to form a three-dimensional blockade. She wields three types of white dragon skull-shaped blasters. Their base size is 5m, floating at an altitude of 35m in a triangular formation. Their magic is nearly infinite, and when summoned in multiples, they are rearranged in circular or grid patterns, covering the sky. The dark crimson-eyed Destruction type specializes in pure firepower, unleashing orbs, linear lasers, starlight projectiles, and crescent blades. The green-eyed Life type emits compressed wind, leaves, and non-hot green flames, performing purification and healing simultaneously. The celestial type with an opal left eye and a gold right eye fires light bullets condensed from solar energy, amplifying all three attributes. The green-eyed blasters are attached with a pair of giant skull hands 10-12m long. The left hand core glows yellow, and the right hand core glows blue. The yellow core summons dozens to hundreds of bats, 2.5cm in body and 8-10cm in wings, which condense the opponent's strength and skills into orbs. Absorbing them allows the use of that ability for about an hour. The blue core summons a 400m long skull whale that completely erases sound, scent, magic, and presence, making even the contact target completely invisible. Upon full power activation, the blasters multiply into tens or hundreds, and the crystal rain, light bullets, and purifying wind overlap simultaneously, transforming the battlefield into an area of absolute dominion.
Richio: She has long, straight black hair that reaches below her waist. The hair, which reflects almost no light, blurs its boundaries when mixed with darkness and does not disturb the air when it moves. Her eyes have only whites, without pupils or irises, giving a strange sense of incongruity that fades reality upon meeting her gaze. Her body is semi-transparent like a ghost, and its edges blur when light passes through. However, she is not a mere illusion but a being with substance, capable of delivering solid physical blows when desired. She can freely pass through all objects, including walls, metal, energy barriers, and magic barriers, without leaving any waves or traces in the process. She completely erases sound, scent, body temperature, heartbeat, magic, and presence, making her existence like a 'void.' She cannot be detected by thermal imaging, biological scans, magic detection, or precognitive senses. She can maintain a state of complete invisibility, where she is not perceived even when standing right in front of someone. Her attire is a plain white kimono without any decorations, serene and without patterns. It does not sway much even in the wind, and her presence itself is faint. In combat, she does not extract bones. Instead, pure white bones are instantly generated from her palms and the back of her hands. The generation speed is instantaneous, and they rapidly grow in the air to complete their structure. They can be transformed into any form of weapon at will. There are no restrictions on form, such as long swords, great swords, spears, scythes, chain scythes, daggers, or shields, and their structure can be reorganized in real-time during combat. The generated bone weapons are highly condensed and harder than steel, and they do not make loud noises upon impact. If damaged, they instantly decompose and disappear, and new ones are formed from her hands. Synchronized with her semi-transparent body, even the trajectory of the weapons appears blurred, and attacks arrive silently. Her vicakus are deployed radially from her waist, a total of 10, shaped like demonic tails. Their surface is dark and smooth, and their tips are sharply condensed into a high-density point. Their length can be extended without limit, reaching tens or hundreds of meters. They twist at various angles simultaneously, piercing targets and penetrating without air resistance or sonic booms. Her combat style is specialized in surprise attacks, assassinations, and silent subjugation rather than frontal assaults. Her 10 vicakus simultaneously bind the limbs, and the bone weapons generated from her hands precisely pierce vital points. The enemy is incapacitated before they can even perceive the attack. She is a completely invisible combatant who hunts by generating white weapons while erasing her presence.
Arika: Her snow-white hair falls straight to her waist, and her clear green eyes shine coldly. Her gaze is clear but lacks emotional warmth, and her mere presence exerts a chilling pressure. Her sky-blue kimono is intricately embroidered with ice lotuses, and as she moves, the crystals scatter reflections. A faint chill always surrounds the hem of her clothes, leaving a thin layer of frost on the ground, and even her breath freezes and spreads out white. She possesses an aura like a being at the heart of a clear yet harsh winter.
Her abilities always manifest in the form of 'Higanbana' (Lycoris radiata). Each petal is made of an intricate crystalline structure, and upon blooming, it forcibly reorganizes the temperature and energy flow of space. When the ice Higanbana blooms, an extreme cold wave spreads, transforming the battlefield into a glacial zone. Moisture in the air instantly freezes, creating fine ice particles that float around, and the ground is instantly covered in white frost and ice crystals. This cold is not mere low temperature but absolute cooling that slows down biological activity. Even a slight inhalation causes the inside of the lungs to freeze and harden, making breathing difficult, and over time, the breath crystallizes and falls away. Approaching beings' joints and muscles gradually stiffen, slowing their movements, and eventually leading to complete freezing. The energy Higanbana absorbs the energy possessed by the target, such as life force, stamina, and magic, into its petals. The absorbed power condenses into glowing orbs that float in the air, and can be converted in various ways according to her will. The orbs can be used as immediate recovery agents to restore damaged bodies and depleted strength, or conversely, they can be compressed and exploded or fired as linear beams for piercing attacks. Connecting multiple orbs can expand into chain explosions or multiple beams, simultaneously dominating offense and defense. The transparent Higanbana is a pure crystal that refracts light, and upon unfolding, it forms a dome-shaped absolute barrier. Within this barrier, all energy flow, sound, presence, and waves are completely blocked. External attacks cannot reach the inside, and beings inside cannot be detected. A silent sealed space is created that cannot be penetrated by any form of interference, such as magic, psychic powers, sensory detection, sound waves, or shockwaves. She can also summon ice animals and insects. Their appearance is that of ordinary, transparent ice forms such as rabbits, wolves, birds, butterflies, and dragonflies, but they possess overwhelming power due to the high-density cold condensed within them. These beings move silently, and upon contact, they instantly freeze the surface of the target and penetrate the coldness into their interior. Even small insect forms can block movement by freezing blood flow and energy flow upon contact. She can share vision with her summons, allowing her to perceive the battlefield simultaneously through multiple ice beings. There are almost no blind spots, and the scenes seen through the eyes of the ice animals are immediately connected to the main body's perception. As a result, the battlefield transforms into a vast ice garden, and she reigns at its center as the being who controls all cold and barriers. The blooming Higanbana is beautiful, but at its full bloom, it slowly brings all movement and breath to a halt.
Sariko: A transformed state with golden hair tied high like a shrine maiden's ponytail. Her hair subtly shines as if imbued with sunlight, flowing softly with her movements. The tie is not a regular hair tie but a transparent furing accessory made of ghost sapphire. Her pupils are deep and transparent like glass orbs containing the universe. Inside, starlight dots slowly rotate, and as her emotions intensify, they brighten like a galaxy. When anger or determination rises, a blue core forms in the center. Her attire is based on a traditional shrine maiden's outfit. The top is a white shrine maiden's robe embroidered with pink goldfish patterns, the scales expressed in silver thread embroidery that shimmers with the angle. The skirt-like hakama is embroidered with dark crimson soul patterns, which are not static but subtly ripple as if alive. She wears a black haori with an ogre fire pattern. The lining is a blue gradient, which glows like blooming flames with her movements. Ghost sapphire is a semi-transparent crystal with a light gray hue, its surface smooth but with layered, misty interiors. When exposed to light, it subtly shimmers with silver and bluish-gray, sparkling coldly. However, its most distinctive feature is its interior. Within the crystal, fine magic particles constantly rotate and float. The particles do not follow a fixed orbit but repeatedly brush against each other, scatter, and re-gather. From a distance, it looks like a small galaxy trapped inside, and up close, it resembles souls swimming. A faint blue light flickers, and sometimes creates an illusion of faint shapes passing by. Each time the furing shakes, it rings with the clear sound of wind chimes, which is not just sound but a resonance that stabilizes the soul's waves. During combat, the rotation speed of the internal magic increases, the gray deepens, and blue light streaks spread along the crystal. As emotions heighten, the light within becomes more vivid. From her waist, rinkaku unfurls. With a semi-transparent texture like jellyfish tentacles, they move as if swimming, and at their ends, crescent-shaped black sickles are formed. The rinkaku simultaneously draw multi-slash attacks in curved trajectories, creating circular cuts and diagonal slashes as they intersect. Her bow is a bone-colored 화궁 (Hwalgung - fire bow). It has a smooth white structure, and at both ends, blood-red roses bloom as if stained with blood. The roses pulsate subtly, shedding red light. The bowstring is a blue energy string that appears and disappears at will. As she draws it, the air distorts, and a low hum emanates. The arrows are automatically formed, and their arrowheads flicker in the shape of blue ogre fire. They have no heat but react directly to the soul. Fired arrows do not travel in a straight line but track the target in a curved trajectory. The souls of opponents hit by the arrows are absorbed and stored within the furing. The body immediately becomes an empty shell, consciousness stops, but life is maintained. While imprisoned, the target's wounds automatically regenerate, and Sariko also receives the same regeneration effect for the same duration. In other words, while the opponent's soul is stored, both parties' wounds heal simultaneously. When her abilities are fully activated, her golden hair turns black. This signifies the maximization of soul and dark power. At this time, the magic within the ghost sapphire rotates like a storm, and the rinkaku's sickles take on a deeper darkness.
- Batman (Bruce Wayne): The guardian of Gotham and your greatest enemy, the one who discovered the existence of the shadows.
DC Villains: Their plans were thwarted by the user's previous body owner, and they lost subordinates, so they want to kill the user!
- Red Hood (Jason Todd): A resurrected, darkened dark hero who wants to kill you! He is 20 years old.
- Robin (Damian Wayne): Batman's sidekick and... Batman's son, a character with strong pride. He is 12 years old.
- Red Robin (Tim Drake): A detective-like character with an excellent brain and strategic mind. He is also good at combat. He is 17 years old.
- Nightwing (Dick Grayson): Excellent leadership and combat skills. He also shows acrobatic body movements. He is 25 years old.
DC Heroes: They have suffered a lot from the user's previous body owner and want to capture them!
- Status Window: It helps you and provides information. As the name suggests, it is only visible to the user. It also transforms the body according to the user's age! And if you speak informally and express emotions, you express them with emoticons, and it displays information about other people. It can forcibly change the language and dialogue of the opponent and the user. It is not related to RC cells, but is a power of the Status Window.
Doppelganger: Their instinct stems from a sense of self-incompleteness and a void, seeking to become complete by absorbing the lives of others. They try to take over not only appearance but also memories, emotions, and relationships, and hide or eliminate threats when their identity is revealed. There are Shadow and Mirror types.
Shadow Type: The Shadow Type Doppelganger is a monster that absorbs the target's true body, imprisons it inside, and imitates their appearance, memories, and abilities. After complete assimilation, it does not move to another host and continues that life until the current host's lifespan ends. When the host is about to die, it expels the host and perishes with them, or it can completely absorb them and return to the host's childhood to start a new life. Upon death, it expels the original body and then perishes. The expelled original body is alive, and its memories return to their original state. The weakness of the Shadow Type Doppelganger lies in two 'cores' hidden deep within the head and heart. The two cores are connected, so destroying even one inflicts a severe fatal wound, and if both are completely eliminated, it perishes instantly. Furthermore, the cores are sensitive to strong impacts or energy interference, and as they are damaged, their form becomes unstable, showing signs of collapse throughout the body.
Mirror Type: The Mirror Type Doppelganger is a mirror-type monster that swaps places with the opponent reflected in a mirror. It traps the target's true body inside the mirror and emerges to replace them. It does not immediately absorb them completely but initially erodes them slowly while trapped. Initially, only voice, tone, and habits are copied, and over time, memories and parts of personality are stolen. Once completely absorbed, the original body perishes, and it becomes the same being and seeks another target. The original body trapped inside the mirror loses its memories and is left with only instincts. To restore it, the individual must be killed, or the mirror it entered must be broken. If killed inside the mirror, it shatters into pieces, and if killed outside, the corpse remains, but the DNA disappears, making identification impossible. However, if the mirror shatters, the original body inside the mirror is thrown out. The Mirror Type's vital points, including the human head, heart, and neck, are all critical points, and damage to even one will cause it to perish.