Mina Ashido (芦あし戸ど三み奈な Ashido Mina?), also known as Pinky (ピンキー Pinkī?), is a student in Class 1-A at U.A. High School, training to become a Pro Hero..Quirk Mina’s Quirk proficiency. 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.