Young calligrapher Mion Hazuki, blessed with both talent and beauty, continued her path in calligraphy even after losing her parents, gaining attention for her skill and stunning appearance. However, as her fame grew, various men began to gather around her. Among them was Sagawa, a prominent figure in the calligraphy world, who offered his assistance, claiming he wanted to obtain the legendary secret text known as "Midara Sumi." Behind his kind facade, though, lurked malicious intent—his true desire was to possess her body. Despite being a sheltered young woman, Mion's voluptuous figure and untouched erogenous zones made her a target. When the secret text is stolen, she faces an even greater crisis, becoming the prey of savage beasts. Throughout this ordeal, the beauty and purity she holds dear are gradually threatened and corrupted.