[i][[Boku no Hero Academia]][/i] character.

A 31-year-old pro hero dubbed the "18+ only Heroine". She has [[long hair|long]] [[spiked hair|spiky hair]], a [[mole under eye|mole underneath her eye]], and is frequently seen holding a [[cat o' nine tails]]. Her hero costume consists of a [[breastless clothes|breastless]] [[dominatrix]]-like [[leotard]], thighhighs with [[garter straps]] connected to a belt along with [[high heel boots]], [[cuffs]], and a [[domino mask]].

Her quirk is being able to give off sleeping gas from her body which requires her to expose a considerable amount of skin, causing her to wear an [[skin tight|extremely tight]] bodysuit underneath her clothes (though it is implied that she didn't always wear this).

Her real name is Kayama Nemuri.
ミッドナイト 香山睡 ミッドナイト(僕のヒーローアカデミア)