The Octopus Devil springs from the concept of octopuses and answers to a single master, the Public Safety hunter Hirofumi Yoshida. Summoned as a tangle of huge tentacles, it serves as his shield, his smokescreen, and his finisher across many of his fiercest fights.
For a long stretch the Octopus Devil's complete form stays hidden. What is shown of its head suggests a towering, humanoid presence laced with cephalopod traits. Whenever Yoshida calls it up, it tends to manifest as a writhing mass of enormous, sucker-lined tentacles.
How the devil thinks has never been explored, leaving its inner character a blank.
Yoshida seals his pact with the Octopus Devil at a price left undisclosed, and the cost scales with the demand: a steeper payment summons a larger manifestation. He brings it forth by uttering Octopus or by forming a particular hand sign, and the devil arrives ready to grapple, screen, or strike. Its tentacles land with tremendous force, hoisting Yoshida and Denji clear of danger, ripping apart Santa Claus's dolls, lopping a limb off the Eternity Devil, and even pinning a rampaging Pochita long enough to wring the Ear Devil's head out of him. The devil can also discharge a cloud of ink to blind and disorient attackers, and it can scout an area for lurking threats. As it does with the Snake Devil and Fox Devil, Yoshida can have it bite down on or wholly swallow a target when he feeds it pieces of a human body, a bargain he strikes in desperation by offering Fumiko Mifune's heart and ordering it to swallow. Across the International Assassins, Justice Devil, Dating Denji, Chainsaw Man Church, and Aging Devil arcs, the creature repeatedly turns the tide for Yoshida, from catching him in mid-fall out of a mall window to spiriting Denji away before his identity can spill.

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The Octopus Devil springs from the concept of octopuses and answers to a single master, the Public Safety hunter Hirofumi Yoshida. Summoned as a tangle of huge tentacles, it serves as his shield, his smokescreen, and his finisher across many of his fiercest fights.
The Octopus Devil's tentacles land with tremendous force, ripping apart Santa Claus's dolls, lopping a limb off the Eternity Devil, and even pinning a rampaging Pochita long enough to wring the Ear Devil's head out of him. A steeper payment from Yoshida summons a larger, stronger manifestation.
Hirofumi Yoshida brings the Octopus Devil forth by uttering the word Octopus or by forming a particular hand sign. He sealed his pact at an undisclosed price, with the cost scaling to the size of the manifestation he demands.
For a long stretch the Octopus Devil's complete form stays hidden. What is shown of its head suggests a towering, humanoid presence laced with cephalopod traits, and whenever Yoshida calls it up it tends to manifest as a writhing mass of enormous, sucker-lined tentacles.
Beyond grappling, the Octopus Devil can discharge a cloud of ink to blind and disorient attackers, scout an area for lurking threats, and bite down on or wholly swallow a target when Yoshida feeds it pieces of a human body. It appears across the International Assassins, Justice Devil, Dating Denji, Chainsaw Man Church, and Aging Devil arcs.
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