Sister Yumiko’s compulsive desires escalate, drawing her into a forbidden world of uninhibited passion with new staff nurse Akiho. Their secret encounters behind cold hospital walls blur the lines of professionalism and personal obsession, fueled by raw need and mutual seduction. Akiho submits to Yumiko’s dominant, frenzied advances as they explore a consuming relationship built on lust, tension, and the thrill of surrender.