Mina is a cheerful and easygoing girl who displays a smile on her face most of the time. 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. Mina's quirk is one that produces a corrosive liquid – acid – from her body. She can alter and change the solubility of the acid itself, as well as where on her body she produces it.