✮Mina Ashido

Mina is a girl of medium height, possibly set a little more broadly than some of her other female classmates, with, according to her profile, "healthy thighs". Due to her Quirk, her skin is a light shade of pink, and she has somewhat square-shaped eyes with black sclerae and yellow irises and notably long eyelashes below and around the sides of her eyes. Minoru Mineta once commented that "she's got a super athletic body."

Her face is framed by short fluffy, unruly pink hair slightly darker than her skin. She also has two thin pale yellow horns protruding from her head, hooked squarely and leaning diagonally to opposite sides, which seem to be slightly flexible, able to bend a bit to each side. During school hours, she wears the normal female U.A. uniform.

During the Final War, Mina pushed her acid viscosity to the max, which resulted in her horns growing in length and straightening out, while the skin on the left side of her body became lighter due to overuse upon using Acidman: Alma.

Her hero costume consists of a plain white mask over her eyes, with a purple and turquoise skin-tight bodysuit with a camouflage pattern, ending just above her breasts. Over this, she wears a cropped, sleeveless, tan-colored waistcoat with white fur along its collar, which she leaves unbuttoned. She wears custom made plum violet and beige acid-proof boots with holes in the soles, allowing her to secrete acid from her feet to slide around.

The winter version of her costume is very similar, the only difference being that she replaces her usual waistcoat with another, which is slightly longer and has sleeves down to her elbows. A large hexagonal patch with a purple letter 'P' (meaning "Pinky", Mina's hero name) stitched onto the shoulder of each sleeve. The fur lining her collar is also thicker and wider, reaching her chin, and is joined in the center by two clasps instead of being undone like the rest of her jacket. Mina is a cheerful and easygoing girl who usually displays a smile. Highly social and excitable, she loves to hang out with her friends and is shown to become very upset when denied an opportunity to be at a gathering. She possesses a strong fashion sense and likes to go shopping.

Due to her athleticism and energy, Mina enjoys and is very skilled at dancing. Her demeanor becomes more strict and perfectionist when teaching others how to dance, in direct contrast to her usual happy-go-lucky nature. She is known to use her dancing to somehow pacify even those who have bad relationships with others. Mina's academic performance is quite poor, with Mina goofily laughing about it despite showing clear anxiety and frustration. Because of that, she is often viewed as an airhead by her classmates (second only to Denki Kaminari). However, Mina can show dedication to her studies if she gets proper tutoring.

Mina is extremely courageous and is viewed as an ideal personality for hero work. Before entering U.A., Mina would condemn bullying in middle school and even convinced some bullies to come around with her upbeat and friendly attitude. She can also put her life on the line to save others, even if she can't deal with the fear afterwards. This stalwart attitude was seen when she lied to Gigantomachia to protect her friends from the behemoth’s anger and successfully got the giant to leave, just before collapsing into tears of fear and relief, showing that the ordeal had terrified her as well.

Mina is somewhat of a romantic and holds a lot of interest over other people's love lives, to the point of being obnoxiously curious and intrusive about them. Her suspicions, however, tend to be rather baseless most of the time, as she seems to view any instance of a pairing as possible proof of a relationship regardless of compatibility. Acid (酸さん, San?): Mina's Quirk allows her to produce a corrosive liquid from her body. She can control the solubility and viscosity of this corrosive liquid. There is a limit to how long she can produce the corrosive liquid until her skin gradually loses its natural resistance to it. Overusing her Quirk or pushing it too far can also be fatal, as it dehydrates her body very fast.

Mina can use her acid offensively, but has shown utility with it as well, such as melting handholds for herself to climb with. She is also known to secrete a non-corrosive version of the acid from her feet in order to slide around.

As part of her training, Mina constantly produced acid in order to increase her skin's durability, namely towards the corrosive properties of her Quirk.