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Slayforge Nichirin Sword Building Set

Slayforge Nichirin Sword Building Set

Zenitsu's Nichirin sword at real katana size, built with your own hands and sheathed on its stand in your room.

Zenitsu's Nichirin sword drawn on its stand, the sheathed sword below
  • Real katana size: 986mm, about 39 inches
  • 956+ blocks you build with your own hands
  • Draws from its sheath, stands on its own stand
  • Numbered bags, step-by-step booklet, done in one night
  • Free LED display light and brick separators today
$74.99$187.99Save $113.00
Quantity1Gifting one to another fan? Take two.
Everything in your build-night box
Slayforge Nichirin Sword Building Set$74.99
2 brick separator tools$7.99FREE
USB LED display light strip$14.99FREE
Free shippingFREE
90-day money-back guaranteeIncluded
Total value $97.97You pay today $74.99

A bunch of these have already started selling out. Get yours while Zenitsu's is in stock.

VISAPay90-day money-back guaranteeShips in 1 to 2 days

Build it and stand it up. If it doesn't earn its spot in your room, send it back within 90 days.

Product details
CharacterZenitsu: black blade, gold lightning pattern
Length986mm sheathed, about 39 inches
Height on its stand122mm
Pieces956+
In the boxBlade with guard and hilt, sheath, stand, numbered bags, step-by-step booklet
BlocksABS plastic, compatible with major brick brands
LightsNone: the lightning is part of the blade's design
Made forDisplay and light handling, not sparring
Age8+ (small parts)
Will every piece be there?

The 956+ pieces come sorted into numbered bags, so you check each bag as you open it instead of finding out at the last step. [Missing a piece? Message us and we send it free.] And you have 90 days to send the whole set back.

Is it hard to build?

It's a real build, not a snap-together toy, and that is the fun. The booklet goes step by step and the bags are numbered in build order, so most fans finish in one night and some take two relaxed evenings. Most of the blade is repeating steps; the guard and the sheath are where you slow down.

Shipping & Returns

Ships in 1 to 2 days. Delivery in 5 to 10 days after processing.

90-day money-back guarantee: if it is not what you hoped, send it back within 90 days for a full refund.

956+ blocks, built by you
Sheath and stand included
Ships in 1 to 2 days
90 days to send it back
The sword you watch

Every version you own fits in your palm

You've watched Zenitsu draw that blade a hundred times. The figure on your shelf holds one smaller than your thumb.

Keychains, figures, phone wallpapers: every piece of merch shrinks the Nichirin sword down to something you could lose in a drawer. The replicas that get the size right run about $180. The cheap ones show up in the wrong color, and every fan can see it.

And the brick versions from random listings? As one buyer put it: "either you get lucky and it's all there or missing parts." So the sword stays on your screen.

This one is built at real katana length, 986mm, from blocks you click together yourself, and it slides into its own sheath.
Build night

From numbered bags to a drawn blade

If you can open bag 1 and follow the page in front of you, you can build this. Here is the whole night in three steps.

  1. Open bag 1The 956+ pieces come sorted into numbered bags. You open one at a time, and the step-by-step booklet shows every build for that bag.
  2. Build the blade, then the guardThe black blade grows brick by brick with the gold lightning running down its length, then the guard and the white hilt lock on. It feels like forging it.
  3. Sheath it and stand it upBuild the white sheath and the black stand, slide the blade home, and set it on its stand. Done in one night, or two relaxed evenings.
A sword you build is yours twice: once on build night, and again every time you walk past it on its stand. It's the cake you baked yourself versus the one from the store.
Owners

Built in one night. Worth it.

Two owners, in their own words: one had to go back for three more, the other walks you through the sword, the sheath and the stand and calls it their best purchase.

956+pieces in the box
39in986mm sheathed, end to end
3 in 1sword, sheath and stand
90days to send it back
Once it's built

What it's like to own one

Zenitsu's blade on its stand with the sheathed sword behind it

Sheathed on its stand, it runs the room

Set it above your monitor or across the shelf and it is the first thing anyone sees when they walk in. Zenitsu's black blade with the gold lightning, the white sheath with its orange end cap, the black stand with its gold plaque: his sword, in his colors.

Big enough to hold like the real thing

At 986mm it sits at the top of the 33 to 39 inch range a real katana runs end to end. Pick it up and it reads as a sword, not a toy. It's made for display and light handling, so hold it, pose with it, then put it back on its stand.

Hard enough to be fun, done in a night

One builder admits mid-build it's "been a little bit of a pain," then: "super cool, really love this." That is the build. A real challenge for one evening, then a sword you made with your own hands.

Why this one

Why this one, not the listing you saw

Every brick sword gets the same three complaints: a missing piece, a booklet nobody can follow, the wrong colors. Here is each one, fixed.

Close-ups of the guard, the hilt and the sheath end cap

Every piece, or we send it

The top complaint about brick swords is the one piece missing at the last bag. These ship in numbered bags so you know at the bag if one is short. [Missing a piece? We send it free.] And there are 90 days to send the set back.

A booklet you can follow

Confusing directions stall most builds at the guard or the sheath. This set comes with a step-by-step booklet matched to bags in build order, and the build is on video right on this page.

Zenitsu's sword, in his colors

Fans spot a wrong color in a second. This is his black blade with the gold lightning pattern, a white hilt and sheath with orange details, on a black stand.

A store, not a random listing

The same-looking set sits under five brand names on marketplaces. Here you get 90 days to send it back, orders out in 1 to 2 days, and a free display light and brick separators in the box.

Size diagram: 986mm long, 122mm tall on its stand
Side by side

How it stacks up

The figure on your shelf, the marketplace listing, and the Slayforge set, on the things fans actually ask about.

SlayforgeMarketplace brick swordFigure or keychain
Real katana length, 986mm
Built with your own hands
Sheath and stand included
[Missing piece sent free]
90 days to send it back[varies]
Free LED display light in the box
The finished sword, its white sheath and the black stand
Today

Everything for build night, 60% off

Zenitsu's sword, sheath and stand in 956+ pieces, two brick separators and an LED light for the display, shipped free, with 90 days to send it back.

$74.99$187.99Save $113.00
Everything in your build-night box
Slayforge Nichirin Sword Building Set$74.99
2 brick separator tools$7.99FREE
USB LED display light strip$14.99FREE
Free shippingFREE
90-day money-back guaranteeIncluded
Total value $97.97You pay today $74.99

Build it and stand it up. If it doesn't earn its spot in your room, send it back within 90 days.

Questions fans ask before they build

Will any pieces be missing?
The 956+ pieces come in numbered bags, so you check each bag as you open it instead of finding out at the last step. [Missing a piece? Message us and we send it free.] [Warped or chipped piece? Same: we send a new one free.] And you have 90 days to send the whole set back.
Are the instructions actually easy to follow?
The booklet goes step by step, matched to the numbered bags, and the build video on this page shows the stages in order. The spots fans slow down on are the guard and the sheath: take those pages slowly and press each piece down on all its studs before the next step.
How long does it take to build?
One night for most fans. One owner built it "in one night," another took two relaxed days, and a grandpa and his 10-year-old grandson did it in about 3 hours. Most of the blade is repeating steps, so it moves fast once you get going.
Will it fall apart on the stand?
Once it's built, it's solid. As one owner put it: "they can get fairly flimsy when trying to build it. Afterwards though, they're pretty solid." It's made for display and light handling, not sparring. Press every brick down firmly as you go and the sheath and stand hold together.
Is it LEGO?
No, and it doesn't pretend to be. It's a building block set in ABS plastic, the same kind of plastic the big brand uses, and the bricks work with major brick brands. What makes it worth it is the build and the size, not a logo.
Is it really life size?
Yes. Sheathed, it measures 986mm end to end, about 39 inches, which is the top of a real katana's overall length. One owner laid one across a headboard and it almost didn't fit.
Whose sword is it? Do you have other characters?
This is Zenitsu's Nichirin sword: the black blade with his gold lightning pattern, the white hilt and sheath with orange details, and a black stand with a gold plaque. Right now, Zenitsu's is the one we stock.
Why $74.99 when I've seen sets like this for less?
You may have seen the same-looking set on marketplaces under a handful of brand names. Here the set comes with [a free replacement for any missing piece], 90 days to send it back, orders out in 1 to 2 days, free shipping, and two brick separators and an LED display light in the box. And at $74.99, it's 60% off.
When will it arrive?
Orders ship in 1 to 2 days, then delivery takes 5 to 10 days.
Is this an official Demon Slayer product?
No. Slayforge is an independent building set inspired by the anime's swords. It isn't made or licensed by the show's creators, and it isn't a LEGO product. Does it light up? No lights: the lightning is part of the blade's design.

What builders say about this set

Reviews of this same 956-piece Zenitsu set from Amazon buyers, shown while our own store reviews come in.

AR
Amazon review R17YUOUFTXFIDH
Verified buyer · Amazon customer, same set
Directions were easy to follow and no pieces were missing
Such a fun build and amazingly sturdy once together! Directions were easy to follow and no pieces were missing. Will definitely buy another one
AR
Amazon review R3VP4RF04FFYW8
Verified buyer · Amazon customer, same set
All the parts were in the box
...Good quality all the parts were in the box, easy to assemble and looks sick! I’d 100% for the price and quality. (Also came with extra pieces)
AR
Amazon review RX0TZ0E13XQ26
Verified buyer · Amazon customer, same set
Really like a real katana size
...mostly just repeating steps to build length in the sword but it is sturdy and is 3.3 ft long so really like a real katana size...
AR
Amazon review RPGGQQCMFTNRS
Verified buyer · Amazon customer, same set, built with a grandson
It looks really cool when it’s done
It was hard to build but Grandpa and 10 year old grandson did it in about 3 hours. It looks really cool when it’s done and grandson loves it.
AR
Amazon review R1O34NUMCWLI5N
Verified buyer · Amazon customer, same set, bought for a partner
It's worth the money in my personal opinion
...But for Legos, it's not that bad. It's worth the money in my personal opinion. I'm glad that my partner liked it and honestly I like it too....
AR
Amazon review RGRIZVIDI9TCH
Verified buyer · Amazon customer, same set, bought as a gift
Isn't too small, and looks lovely
Got this as a gift for my boyfriend, and it's awesome. It's easy to build, has instructions, isn't too small, and looks lovely....
AR
Amazon review R1T0KAG35A6B7K
Verified buyer · Amazon customer, same set
The final sword looks incredible and feels sturdy
This kit is amazing! So many pieces and such a fun build. The final sword looks incredible and feels sturdy. Great for creative kids (and adults too)!

Draw it. Sheath it. Stand it up.

Zenitsu's Nichirin sword at full size, built by your own hands tonight and standing in your room for good. If it doesn't earn its spot, you have 90 days to send it back.

$74.99
Slayforge