Ai Enma once again returns as the Jigoku Shoujo, who uses Jigoku Tsuushin (Hell Hotline) to allow people to post their grudges on their tormentors, sending them straight to Hell. In exchange, the users of the website will end up in Hell after they die. Meanwhile, a mysterious girl with blue eyes called Kikuri appears and seems to have strange intentions towards Ai and Jigoku Tsuushin's operation.


(Source: Anime News Network)

After the events of the 2nd season, Ai's three helpers, Ichimoku Ren, Wanyuudou and Hone-Onna live out their lives in relative peace. This is suddenly shattered when Kikuri returns to recruit them. Meanwhile, Ai mysteriously reappears from the dead and uses the body of a young schoolgirl, Yuzuki Mikage, to continue the Jigoku Tsūshin operation. Yuzuki is aware of Ai's presence however, when she can see what Ai sees.

Somewhere in the vast sea of the Internet, there's a website that can only be accessed at the stroke of midnight. Known as the Jigoku Tsushin, rumor has it that if you post a grudge there, the Jigoku Shoujo will appear and drag whoever torments you into the inferno. Very little is known about the girl - all we know for sure is that she lives with her equally enigmatic grandmother, that three magical straw dolls accompany and serve her, and that whenever a posting on the Jigoku Tsushin moves her, she becomes the Jigoku Shoujo.

随着社会发展人类的进步，警察这一历史源远流长的职业变得愈发的重要。在女权主义逐渐觉醒的现代，越来越多如珍珠一般闪耀的女性身着着帅气逼人的制服，出现在了打击邪恶维护正义的行列之中。
辻本夏实（玉川纱记子 配音）就是这样一位能干强悍的女性，其短发的造型一下子就能给人以精明干练的良好印象，而她活泼好胜的性格也经常为同僚们惹出了不少的麻烦。但正因为这有些莽撞的个性和极强的行动力，使得一些犯罪分子无处遁形。作为夏实的最佳搭档，小早川美幸（平松晶子 配音）细腻缜密的逻辑思维弥补了夏实的大大咧咧，同时，她一流的驾驶技术也让两人的行动如虎添翼。就是这样有趣的两人，每天，都有妙趣横生的事件发生在她们的身边。