Ghost Devil

Bulky and roughly tube-shaped, the devil wears a coat of pale blossoms across its trunk, their centers tinted yellow or pink, and where legs should be it has a cluster of arms instead. Its grey limbs shift in tone from scene to scene across the colored pages. The head looks withered and ancient, framed by long, dark, wavy hair above hollowed cheeks, and both its eyes and its mouth have been stitched shut. The anime renders its flowers pink at the rim and blue at the heart.

Little of its temperament comes through. It balks at facing Katana Man out of fear of Akane Sawatari, yet the instant Himeno offers up her whole body in payment, its mood flips to eager delight. A softer thread shows during Aki Hayakawa's last encounter with it, when it proves to have kept Himeno's gift of his first cigarettes for years, holding them until the moment he was ready, a sign it still carried feeling for its former partner.

Himeno strikes the original bargain, surrendering her right eye so that the devil's right arm stays bonded to her at all times, a limb she can wield unseen and that even speaks to her by shaping a mouth. During the trap sprung by the Eternity Devil, she puts it to constant use, snaring the foe in midair for Power to cut, throttling Power into surrender since the arm cannot be touched in return, and yanking Denji's cord to force his regeneration. The devil's body resists ordinary contact, turning intangible and invisible, though special blades and rival devils can still wound it.

The bond turns fatal in the clash with Katana Man. The devil first refuses to fight, cowed by Akane Sawatari, until Himeno gives up her entire body for its full might; it eagerly accepts and overwhelms Katana Man before Akane's Snake Devil swallows and beheads it, and Himeno vanishes along with it. Brought back under Akane's command, it later turns on Aki Hayakawa, who reads its blows through the Future Devil's foresight yet cannot keep pace and is seized and crushed. It pauses to hand him a cigarette marked Easy revenge!, and Aki, recalling Himeno's warning that the thing perceives only fear, empties himself of dread, scales its frame unnoticed, and takes its head off with his sword.