Demon Lord Dearvil attempts to conquer the town where Fontaine lives as the first step toward universal domination. As part of his plan, he launches an attack to eliminate the troublesome Fontaine by executing her. After capturing Fontaine following her defeat in battle, he plots to harness her magical power as an energy source using advanced scientific technology. To achieve this, he subjects Fontaine to repeated experiments involving various forms of torture and humiliation to forcibly extract her magical abilities. This story depicts a tragic progression filled with evil intentions and ruthless methods. [BAD END]