دينجي هو مراهق يعيش حياته كصياد الشيطان.

بهدف سداد الدين الذي ورثه عن والده، يبدأ في صيد الشياطين من أجل الياكوزا مع صديقه بوتشيتا، "شيطان المنشار"، بينما يعيش حياة فقيرة بشكل مأساوي.

فقط عندما تبدو الأمور وكأنها لا يمكن أن تزداد سوءا، يتعرض دينجي للخيانة والقتل من قبل الياكوزا. عندما يبدأ دينجي في الوعي، يسمع شخصا يتصل من داخل رأسه...

Denji experiences his first, yet devastating, kiss.

An intoxicated Denji is taken to Himeno's house, where she starts seducing him. Feeling torn between Makima, whom he admires, and Himeno, who is standing in front of him, he decides to fall into temptation. However, Denji then finds something in his pocket: The Chupa Chups lollipop that Makima gave him.

A fierce battle unfolds between Denji and the menacing Samurai Sword. But even after Denji takes one of Samurai Sword's companions hostage, Samurai Sword slashes through them both until Denji is captured. Meanwhile, after seemingly being killed, Makima turns out to be alive. She sets out to rescue Denji with the help of Public Safety Devil Hunters from Kyoto, Kurose and Tendo.