The truth of the academy hidden in darkness... Reina Akechi, a beautiful woman who descends from the famous detective Holmes. To uncover the mysteries of heinous crimes, she transforms into the divine form of "Beautiful Saint Detective Charlotte" through the crystallization of science! Her next mission is a corrupt academy that sells students as "mutant weapons." However, when students who became victims of the experiments stand in her way as enemies, doubt arises in Reina's heart. Charlotte is captured, her powers sealed. The academy principal becomes interested in the secret of her extraordinary power and begins to investigate the existence of her "organization." The fangs of lust attack Charlotte's moist skin. The torture of pleasure and Charlotte's patience and endurance intertwine... In sexual collapse, Charlotte's body and mind exceed their limits and go mad... [BAD END]