A nursery teacher from Shimane Prefecture, Sumire Tsukino (29 years old). Working for the smiles of children, she endures chronic staff shortages, dealing with parents, and harassment from a domineering director, getting through each day fueled only by a sense of responsibility. One day, she surrenders her heart to a forbidden relationship with a child's father. Though she finds fleeting peace, guilt and loneliness persist, and she's once again cornered by a futureless reality. Reaching her physical and mental limits, Sumire arrives at the women-only private relaxation salon "Tsukihi ~Luna Touch~." It's a secret healing space rumored to awaken the 'instinctual pleasures' women have forgotten. Guided by careful counseling and gentle words, Sumire gradually opens up. Eventually, she steps into the special course "Luna Special," available only to referrals. Amidst warm hands, sweet whispers, and a deeply enveloping treatment, she confronts the emotions and desires she's suppressed. With each return visit, Sumire experiences deeper pleasure and release, awakening the instincts sleeping in the depths of her heart. Confusion, a sense of depravity, and an irresistible intoxication... In the gap between stimulation and healing, unattainable in daily life, her values slowly shift. This is an erotic work about a woman burdened with loneliness and conflict, shedding the shell of her mind and body through forbidden anal therapy. What does she find in her quest for healing? In the secret salon bathed in moonlight, one woman's chrysanthemum begins to quietly stir...