One day, an unexpected kiss ignites a thirst they had long suppressed. Akari, a schoolgirl who always lingers in the infirmary, bears scars on her slender arms. Kanna, a married teacher, hides bruises beneath her long sleeves. As they lick each other's wounds, they begin to consume each other's emotional pain. What they share isn't love, nor healing—it's obsession masquerading as warmth. Lips and fingertips intertwine in a desperate embrace. Akari's feelings shake Kanna, and together they sink sweetly into the darkness. "I can't live without you"—a phrase that fuels their desire. A disturbingly beautiful lesbian drama of mutual dependence.