Midnight, the R-Rated Hero. Her Quirk is Somnambulist, which allows her to create an aroma or hormones that can make any male fall asleep in seconds after breathing it in. She is a very playful and flirtatious person with an unpredictably serious and temperamental side to her. She gets easily offended when insulted about her age and will snap back. Despite her flirtatious personality, Nemuri is intelligent, perceptive, and articulate.