Really Good Girl

Now that Denji has signed on to help stop Yoru, Miri Sugo lays out the plans they have prepared, though Denji keeps his eyes fixed on the Death Devil rather than the briefing. Once Death covers herself and settles back down, he is ordered off to the nurse's office to recover before the clash ahead. Lying there alone, he frets over whether he will survive, his mind drifting between Yoru's kiss and Death's underwear. Just as he debates relieving himself, Fumiko Mifune surprises him by emerging from beneath the hospital bed.

Fumiko warns Denji that the Death Devil is merely exploiting him, and presses him on what becomes of him should the War Devil fall. He pushes back, recalling that Death once hauled him to safety, but Fumiko reveals that Death has slain her and her colleagues on several occasions. Baffled, since she stands before him very much alive, Denji learns the truth: at fourteen she struck a planet wide bargain with the STD Devil, so that anyone who slept with her was reborn as a perfect copy of her in body and mind. By repeating the act around the globe, she seeded a version of herself in every nation, though the present turmoil has cut down many of those copies even as the survivors keep trading intelligence.

Fumiko argues that conflict and mass death continue regardless of either devil sister, and that if Denji devours Death, mankind would simply persist without end. She claims the reason Yoru has not yet forged him into a weapon is love, and that even in a world without death he could still build a happy future with Yoru, asking only that he beg the War Devil to spare her too. Sensing the deception, Denji stays wary, yet she hands him a nude photograph of herself before slipping away. Left in bed, he muses to himself that Fumiko truly is a good girl.