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"I feel it...This is Akane Shinjo's heart itself!"

―Gridknight describing the monster's second form.

Nanashi (ナナシ, credited as 'Anonymous')[1] is a Kaiju that appears in SSSS.GRIDMAN. It is Akane Shinjo's final kaiju. This Kaiju really has no name, as 'nanashi' (名無し) translates to 'nameless'.

Subtitle: **** Monster (****怪獣 **** Kaijū)



This was the first Kaiju to appear in over a week, being selected by Akane Shinjo among several incomplete figures after Alexis・Kerib pushed her into making a new kaiju. It was easily dealt with by Full Powered Gridman, who launched the Breast Spark at it. However, unlike other kaiju, its corpse did not explode.

Later, something else emerged from the "corpse" and began to wander around decapitating the Venoras, clearing the fog around the city. Full Powered Gridman was called into action once more, but was easily defeated by the creature because of its unpredictable and powerful attacks. The monster then began tearing the Assist Weapons off of Gridman and strangled him, until Anti arrived, knocking the monster aside. It then shot both of its opponents with a destruction ray, but Anti got in the way to protect Gridman. Battling alone, Anti evolved into Gridknight, and was able to match his enemy. Gridknight finished off the Kaiju by slicing it in half using his new cutting halo attack. Collapse

It, along with all the other Kaiju Gridman fought, reappeared when they were summoned by Alexis to get rid of Gridknight, since Akane refused to make any more new kaiju. It was finished off along with Gonglee when Gridknight sliced them in half using the Gridknight Circular. Decisive Battle


  • Designer: Masaru Sakamoto
  • Underneath the head of the "suit", above the line on the neck, are dots that are made to resemble eyeholes of older/cheaper tokusatsu suits.
  • The kaiju's first form can be seen as a counterpart to Teleboze from Gridman the Hyper Agent; as the two were both weaker creatures of a similar build, only to have a more menacing and powerful second form.
  • Nanashi B's death is done in the same way as Shinobilar: both tried to disorient their opponents with high speed attacks until they were killed by an incoming slicing projectile.
  • Its 'A' form is designed to resemble a soft vinyl (sofubi) figure[2], hence the ridges around its neck, shoulders, hips and tail, which are designed to resemble the articulation points on vinyl figures.
    • Meanwhile its 'B' form is inspired by wires and shellfish to give it an unsettling look.
  • According to scrapped concept art shared by character designer Masaru Sakamoto on Twitter[3], Nanashi B's head was meant to be able to open up and reveal a mouth and tongue.



Its first form. This form is actually a "suit" worn to conceal its true form.

  • Height: 77 m
  • Weight: 20,000 t
Powers and Weapons
  • Pink Lightning Ray: The monster can fire a stream of pink lightning from somewhere on its head.


Its second and true form, which is much more dangerous than the first. Some sources call this form the person inside (中の人 Naka no hito).

  • Height: 65 m
  • Weight: 18,000 t
Powers and Weapons
  • Strength: It has incredible strength, being able to physically harm Full Powered Gridman as well as tear the Assist Weapons off his body.
  • Agility: The monster is incredibly fast and agile, being able to dodge a barrage of missiles fired at it.
  • Energy Beam: A very powerful energy beam fired from its "eye", it can defeat Full Powered Gridman in one shot.
  • Instant Decapitation: Simply by walking past them, it can somehow decapitate the Venoras.
  • Unpredictability: The monster's unpredictable moves and behavior prevent Gridman from anticipating its assaults, or land an attack on it. Despite this, Anti's Gridknight form can keep up with its speed and eventually defeated it.
Gridknight Fight
  • Disguise: Nanashi B is able to disguise itself as Anti's past monster form. Exactly how it did was unknown, save for the scene where Nanashi B reverted to its original form in the middle of the battle with Gridknight.


During the events of Gridknight Fight, Alexis・Kerib summoned Anti's monster form to fight against Gridknight. "Anti" was later on revealed to be Nanashi B's disguise that eventually wear off in the middle of their battle.

  • Height: 65 m
  • Weight: 55,000 tons
Powers and Weapons
  • Retractable Claws: Like Anti's monster form, the impostor is able to summon blade claws from its wrists.



Gridman Kaiju
Gridman the Hyper Agent Kahn Digifer | Gilarus | Bamora | Volcadon | Stealgun | Bagira | Anosillus | Compoid Unison | Flamelar | Blizzalar | Shinobilar | Terragaia | Metallus | Magnegauss | Generadon | Mecha Gilarus | Revived Shinobilar | Mecha Bamora | Imitation Anosillus | Mummy | Mecha Bagira | Mecha Flamelar | Mecha Stealgun | Dazzlba | Neo Metallus | Mecha Generadon | Plandon | Venora | Boranga | Eyegangar | Kung Fu Shinobilar | Jubagon | Teleboze | Gyurunba | Chidogerah | Abumaru | Goromaking | Devil Phazer | Khan Giorgio | Skubone | Giant Kahn Digifer | Kahn Digifer's combatants (stage show)
Gridman the Hyper Agent: The Demon King's Counterattack Neo Kahn Digifer | Neo Metallus | Magma Giras | Glavas | Mad Texas | Gorgoberos | Devilight | Gilarus | Stealgun | Shinobilar | Geist Digifier
Gridman the Hyper Agent: boys invent great hero Gilarus | Magnegauss | Revived Shinobilar | Venora | Giant Kahn Digifer | Glavas | Magma Giras | Gorgoberos | Devilight
SSSS.GRIDMAN Venora | Alexis・Kerib | Ghoulghilas | Dévadadan | Anti | Gonglee | Go'yavec | Anosillus the 2nd | Diriver | Mecha Ghoulghilas | Bujack | Nanashi | Zegga | Repli-Compoid | Giant Alexis・Kerib | Anosillus
SSSS.GRIDMAN NOVELIZATIONS Black Akane | Gaiyaros | Scorban | Deiwardas
Diaclone VS. Gridman Giganter
SSSS.DYNAZENON Shalbandes | Greyjhom | Burnaddon | Didoras | Neophobia | Bullbind | Zaiohn | Goldburn | Gibzorg | Garnix | Gagula
Gridknight Fight Alexis・Kerib | Anti | Nanashi B