Acid ( (さん) San?) is a Quirk used by Mina Ashido.


Acid allows Mina to create corrosive liquid from her skin.

This Quirk alters Mina's skin pigment, resulting in it having a purple-pink coloration.[1] Despite that, her acid itself seems to be colorless.

The produced acid can be strong enough to melt solid objects, including metal ones. This gives Mina an advantage against most adversaries, especially those who are overly reliant of easily-destroyable weapons and equipment, such as Yuga Aoyama.

Mina has a limit of how long she can keep producing acid through her skin, gradually losing her natural resistance to her own Quirk.[2]


Mina can control the levels of solubility and viscosity of her acid. By lowering solubility, she ensures that her Quirk doesn't become lethal against most living beings. And by raising viscosity, Mina is able to generate extremely slimy acid that can act as a protective barrier by gluing it to surfaces.

Mina Climbing

Mina using her acid for climbing.

Mina is noted to be capable of burning entrance holes on surfaces, which can prove useful for sneaking inside secure locations. Similarly, she can melt spots on a wall with her acid-generating limbs in order to facilitate climbing.[3] When Mina shoots acid from her hands, it appears to come in short-ranged gushes, although with more refined control, she can spray it farther.

For mobility, Mina's acid can make the ground slippery, allowing her to quickly slide on it by skating.[4] Mina seems to always wear special, acid-proof footwear with holes on its soles, making it easier for her to secrete acid from her feet whenever she needs to.

Mistakes can cause Mina to dissolve her own clothes accidentally. Because of that, her costume is built to be largely acid-resistant.

Named Super Moves

Acid Veil

Acid Veil.

  • Acid Veil (アシッドベール Ashiddobēru?): Mina's special move, by maximizing her acid's solubility and viscosity, she creates a powerful acid wall which blocks incoming projectiles. It is strong enough to block hardened balls (which are stronger than concrete) with ease.[5]


  • Like several other Quirks, Acid has its own signature sound effect: "SHZZ".


  1. My Hero Academia Manga: Chapter 58 (p. 1).
  2. My Hero Academia Manga: Chapter 58 (p. 18).
  3. My Hero Academia Manga: Chapter 58 (p. 18).
  4. My Hero Academia Manga: Chapter 58 (p. 18).
  5. My Hero Academia Manga: Chapter 104 (p. 5).

External Links

  • Acid: Wikipedia article on the substance Mina creates.
  • Solubility: Wikipedia article on one of the Quirk's properties Mina can manipulate.
  • Viscosity: Wikipedia article on one of the Quirk's properties Mina can manipulate.
  • Corrosion: Wikipedia article about the main effect of Mina's Quirk.

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