Kazama Mana, a 22-year-old intern nurse at a sanatorium, stands 156 cm tall with a slender 45 kg frame and measurements of 84-56-86 cm. Her striking red hair cascades in waist-length ponytails, twin tails, or spiky bangs, accentuating garnet-colored tareme eyes. She typically dons a nurse uniform and skirt accessorized with hair ornaments, though her attire occasionally shifts to provocative pieces like a crotchless leotard or a slave collar.

Inspired by Florence Nightingale, Mana strives to personify the benevolent “angel in white” ideal, dedicating herself to caring for terminally ill patient Mizukawa Wataru. His cynical rejection of her altruistic beliefs triggers a series of coercive encounters, compelling her into degrading sexual acts under his orchestration.

Her vulnerability intersects with Dr. Kuwabara, an elite physician fixated on nurse Ren Nanase. Noticing Mana’s resemblance to Ren, Kuwabara exploits her unrequited affection for him, manipulating her into a non-consensual encounter where he substitutes her identity with Ren’s during repeated assaults. This violation fractures her idealism, exposing her exploitation within the institution.

Further trauma unfolds through forced participation in invasive medical experiments and psychologically manipulative scenarios, including non-consensual catheter use. These systemic abuses systematically erode her innate compassion, charting a narrative of innocence corroded by institutional cruelty.