Iris suffers a brutal betrayal when Riruru delivers her to the lustful Duck People of Darktown. As Iris attempts to uncover Riruru's true identity as her former comrade Meiri, she is subjected to the sadistic experiments of Doctor B. By linking their nervous systems, the mad scientist forces Iris to experience his own overwhelming lust, further eroding her will and plunging her deeper into a cycle of degradation.