Basedia, a high-ranking officer of the demon empire Valzart who bears the full trust of the Demon King Valgious. She has always maintained a calm and flawless demeanor, achieving outstanding combat records, but her cold and arrogant attitude incites intense jealousy from her colleague Doguronezuma. Feeling genuinely threatened by her strength, Doguronezuma secretly devises a conspiracy. He implants a remotely controllable vibrator into Basedia's lower body, planning to induce mistakes during battle. As a result, she faces scolding from the Demon King and suffers physical distress, culminating in a tragic ending as Doguronezuma exposes her weakness.