Heat Coils (ヒートコイル Hītokoiru?) is the Quirk used by Kotatsu and Ms. Mikan.
Description[]
Heat Coils grants the user multiple coiled heating elements, which either protrude from their body or are built into it. These coils run off of the body’s natural electricity, though they are also compatible with current from other sources. The coils generate heat in direct correlation to the amount of current flowing through them and seem to be constructed from nichrome, a nickel alloy. When the coils are heated the rest of the user’s body also increases in temperature, beginning with the regions closest to the coils. In addition to heat, the coils can generate a considerable amount of light which is either orange, red, or white. Broken coils can heal overtime like bones. They are repaired and maintained through a high Nickel diet by eating foods like Navy Beans and other produce.
Weaknesses[]
Since the user is not completely immune to their generated heat, it becomes increasingly dangerous to maintain current in the coils for too long. Doing so will result in the user sustaining burns, and in more severe cases lead to heatstroke. Staying hydrated is also essential, as continuous usage of the coils will dry out the nearby skin and exhaust the user's body of water. Exterior coils must be periodically cleaned or it will inhibit their function. Any breaks that occur in the coils will also damage their effectiveness. The user is not immune to the hazardous effects of electricity from external sources, and as a result they risk being electrocuted if using it to power their coils.
Usage[]
Kotatsu[]
Kotatsu's Quirk manifests coils wrapped around each of his forearms. Each is its own continuous element with part of the connection resting beneath the skin. He has four additional spiraling-circular coils embedded in the skin on his back oriented like a stove top. All six coils can be removed and regrown stronger to withstand higher temperatures, however it is cumbersome and somewhat painful to do so.
Heating these coils creates a natural defense for Kotatsu, as he can burn targets who make contact with them. At red-hot and higher temperatures the coils generate waves of heat which can be manipulated to some degree with hand motions. Offensively, Kotatsu can strike targets directly with his coils to burn them. He can also sear those around him with the heat waves they emit.
With enough amperage the light generated by the coils can be increased to blinding levels, though doing so will deplete the current at a faster rate.
Exterior coils are somewhat compatible with other quirks based in heat and electricity. Through direct contact the coils can be heated to considerable levels by these quirks, sometimes to an even greater extent than their normal output.
Named Super Moves[]
- Back Burner Flash (バックバーナーフラッシュ Bakkubānāfurasshu?): Kotatsu quickly heats up all four of his back coils to the degree which they emit a bright light. This can stun onlookers and is useful for covering his escape if Kotatsu chooses to turn tail and run.
- Heat Wave Recoil (熱波反動 netsuha handō?): Kotatsu crosses his arms in a defensive stance while intensely heating all his coils. He then extends his arms outward releasing an omni-directional burst of searing hot air.
- White Hot Bangles (ホワイトホットバングル Howaitohottobanguru?): By increasing the temperature of his arm coils to their maximum, Kotatsu can burn and melt targets by touching them. He also emits intense heat waves which he can direct with arm gestures. This technique leaves Kotatsu completely exhausted and also incinerates all of the hair on his arms.
- Twin Furnace Fist (ツインファーネスフィスト Tsuinfānesufisuto?): This is a cooperation technique utilized by Kotatsu and Ms. Mikan in tandem. Each user first increases the temperature of their arm coils to equal the other's. Once they are synchronized, each delivers a red-hot heat laced punch to the target from opposite sides. The resulting force of the punches and the two clashing heat waves melt, or in some instances completely incinerate the target.
Ms. Mikan[]
Ms. Mikan's Quirk manifests coils throughout her entire body aligned similar to her skeletal structure. Each is its own continuous element and rests completely beneath the skin. They notably are more flexible than Kotatsu's coils to a degree. Though all of her coils can be removed and regrown stronger to withstand higher temperatures, it requires surgery more extensive than Kotatsu's and is too painful to do without anesthesia.
Due to their internal positioning Ms. Mikan is comparable to a living furnace and able to generate, circulate, and retain thermal energy to a greater degree than Kotatsu. Using this energy she can vitalize any part of her body to increase her physical abilities. In this method she also decreases the time it takes to heal from certain wounds by increasing oxygen/nutrient rich blood flow to an area. This allows her to jump higher and strike harder than what would be ordinarily possible as she continues to raise her temperature.
If enough energy is concentrated in one location, Ms. Mikan's skin will begin to glow orange in color and radiate heat waves. By whistling she can expel these waves from her mouth in a concentrated stream of air with enough force to melt ice and weak metals, or turn water into steam. Doing so repeatedly and at high temperatures is not without risk, as it not only dries out her mouth and throat but also decreases the amount of moisture in her body as a whole.
Her increased body temperature creates a natural defense, allowing her to burn targets who make contact with her skin or remain in close proximity to her radiated heat for too long. To a lesser extent, she can direct the radiated heat with hand motions to sear targets.
Similar to Kotatsu, the light generated by Ms. Mikan's coils can be greatly increased with enough amperage, however the barrier of skin prevents them from reaching blinding levels.
Though her coils are somewhat compatible with other quirks based in heat and electricity, their positioning presents Ms. Mikan with an increased risk since she must make direct skin contact with the source. These quirks allow her to increase the current to an even greater extent than their normal output.
Named Super Moves[]
- Peel Out (皮をむく Kawa o muku?): By heating her coils Ms. Mikan increases her overall blood circulation, strengthening her body. This grants her an increase in movement speed which she uses to maneuver quickly. It is especially useful for when Ms. Mikan needs to travel long distance on foot or through snow.
- Heat Wave Whistle (熱波ホイッスル Neppa hoissuru?): Ms. Mikan heats the air in her lungs using the nearby coils then expels a searing hot stream of compressed air by whistling.
- Vermilion Spiral (朱色の螺旋 Shuiro no rasen?): Over her super-heated coils, Ms. Mikan's skin begins to glow red-orange as it overflows with thermal energy. In this state her body radiates a shroud of intense heat waves which visibly distort the air. With her augmented strength and speed Ms. Mikan delivers a flurry of spinning strikes. This technique completely exhausts her, and if used for too long causes Ms. Mikan's hair to smolder and skin to peel.