Эп. 18: Мики Каваками призывает Адскую Девушку после того, как Мэйко Шимоно убивает её собак и раскрывает тёмную семейную историю.

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Miki Kawakami finds herself and her two Welsh Corgies enslaved by Meiko Shimono, an evil and reclusive rich woman; because Miki's dogs bit her, Shimono now holds the dogs hostage and forces Miki to be her slave. Miki calls for Ai Enma's help when Shimono kills one of her dogs, hoping to save the other. When Hajime decides to intervene again, Tsugumi asks why they must stop Hell Girl if the people she takes deserve it. Miki hesitates, and it is revealed that Shimono killed her parents and her own child to keep her inherited fortune to herself; Shimono is arrested. When Miki realizes Shimono had killed not only her other dog, but—in the moments before her arrest—even the dog's newborn puppies, she pulls the string. Shimono disappears from the back of the police car, having been sent directly to Hell, while Miki wishes she had not hesitated. And more Meiko Shimono is unlike the criminals gangs and yakuzas gangs, she is abusive and hostile towards all those who move. (Source: Wikipedia)