Design on screen. Build in paper.

Design, unfold, print, and build paper models.

SHIRYU lets you design a simple 3D model, unfold it into printable patterns, and assemble it as a paper model.

It also includes 70+ ready-to-build models, so you can start by printing and assembling existing models, then use them as references for your own designs.

SHIRYU is not just a collection of finished patterns. Its value is that you can move from ready-made examples to designing paper models yourself, then print and build the result.

Get it on Microsoft Store Get it on Steam Other purchase options Model guide Setup guide See real works

System: Windows 11 / 10 / 8.1 / 7 / Vista / XP · 2 GB RAM or more · about 70 MB free space · 800×600 or higher
Price: US$5 one-time purchase · available on Microsoft Store · commercial use OK for your original works · free updates for licensed users · Last updated:

See how an idea moves from the screen into your hands—in 30 seconds.

What you get

• 70+ built-in models ready to print and build

• Design, edit, unfold, print, and assemble

• A compact tool for making paper models

US$5one-time purchase

Start here: print an included model.

The pink boxes show the exact buttons to click. No long manual is needed for the first print.

4 simple steps

Four-step SHIRYU tutorial: open the model library, select the bus, click the pink print button, and confirm OK to print the craft diagram — Print a ready-made bus craft diagram.Open the included-model library, choose the bus, and follow the highlighted buttons.

Click the image to open a larger version.

Why SHIRYU is different

Ready-made unfolded patterns are useful, but they end at one finished design. SHIRYU gives you a way to design a paper model on screen, unfold it, print it, and assemble it.

You can start from included models.

With 70+ included models, the first step is easy. Open a model, print it, assemble it, and understand how the shapes become paper models.

You can design paper models yourself.

This is the core of SHIRYU. It is not limited to pre-made content. You can create and edit shapes, then unfold them into printable patterns.

Simple, but not shallow.

The interface is intentionally simple, so the workflow can stay close to the goal: design a shape, unfold it, print it, and build a paper model.

Windows software
Buy once
70+ included models
For papercraft, teaching, and workshops

What can you make?

SHIRYU does not stop at the screen. The goal is a real paper model you can print, cut, fold, and assemble.

A collection of many SHIRYU papercraft models — More than 70 built-in models. They are fun to build and useful as examples for your own work.

A colorful papercraft merry-go-round designed with SHIRYU — Friendly, playful projects are possible too. The important part is that the design really becomes a paper model.

SHIRYU modeling screen — The creation side of SHIRYU. It starts from included works, but it can also lead to your own original paper models.

How does it become a paper model?

The workflow is direct. Start from an included model, or start from a shape you design on screen.

Design a shape.

Open an included model and modify it, or begin from scratch. This is where the paper model starts.

Unfold it.

Turn the shape into printable unfolded patterns. This is the bridge from screen design to paper model.

Print and assemble.

It does not stay digital. In the end, you get a paper model that can be held, displayed, and learned from.

See the full model-making process on screen

Follow a cat model from drawing the outline through 3D shaping, connecting parts, coloring, unfolding, printing, and assembly.

Open the model guide

Visual guides: from screen to paper model

These guides use the actual SHIRYU screens. Follow the highlighted buttons and pictures to understand the full flow from model creation and printing to final assembly.

Eight-step SHIRYU visual tutorial showing how to draw, shape, connect, color, print, cut, fold, and glue a simple paper cat — Create a simple paper cat.This full workflow shows drawing, 3D shaping, connecting parts, coloring, printing, and the finished paper model.

Six-step guide showing how to rough cut, trim, score fold lines, fold parts, glue, and match numbered faces to finish a printed paper model — Build the printed paper model.Follow the six steps from rough cutting and scoring the fold lines to folding, gluing, matching numbered faces, and finishing the model.

SHIRYU edit screen reference with numbered controls for viewing, opening, selecting, shaping, drawing, display style, and undo — Edit screen — controls 1 of 2.Create and shape each solid, then add colors and patterns.

SHIRYU model screen reference with numbered controls for posing, connecting, previewing, unfolding, and printing — Model screen — controls 2 of 2.Pose and connect the solids, then preview and print the unfolded sheets.

Detailed visual guide to SHIRYU.

A detailed image showing the workflow and key points.

Windows only / US$5

Overview of SHIRYU digital papercraft software: design on screen, unfold, print and build paper models, with examples, price, commercial use, and Windows support — This image is a detailed guide: design and edit a model, generate unfolded patterns, print them, and assemble a paper model. It also summarizes the included models, commercial-use allowance, and Windows support.

Buy SHIRYU See how it works

For papercraft, teaching, and compact creation

SHIRYU has been improved little by little over time. It can be used as a papercraft tool, a classroom aid, or a small creative environment for paper models.

Workshop photo with SHIRYU works — It is not only about the screen. The important thing is that the design can exist as a real paper model.

Display photo of SHIRYU models — Part papercraft tool, part teaching material, part creative tool. SHIRYU sits between all three.

System requirements and notes before you buy

This should be stated clearly: SHIRYU is a Windows-only desktop software. It is not a phone app.

Supported systems

Windows 11 / 10 / 8.1 / 7 / Vista / XP

Recommended minimum

2 GB RAM or more / about 70 MB storage / 800×600 display or higher

Setup

Installation note

If you used the trial version before, uninstall it before installing the product version. A printer is recommended if you want to build physical models.

Update tools
update170.exe / update170.zip
Japanese trial builds and update notes can also be found on BOOTH.

Purchase options

Microsoft Store is the quickest way to get the English Windows edition. Other checkout options remain available below.

SHIRYU digital edition

Windows digital papercraft software / US$5 one-time purchase / commercial use is OK for your original works

Microsoft Store Steam Stripe itch.io Gumroad Square STORES

Model creation guide: see how a simple cat model is created, colored, unfolded, printed, and assembled.

Setup guide: check the download, ZIP extraction, installation, and first launch flow with illustrated steps.

Japanese editions, tools, and update-related items: BOOTH

Model creation guide

Follow a white cat example from drawing outlines to printing and assembling the paper model.

Open model guide

Setup guide

Check the download, ZIP extraction, installation, and first launch flow with illustrated steps.

Open setup guide

Contact info@inazuma7.co.jp

Related links
Seller: Inazuma Inc.
Book on Amazon Japan
Vector PC Shop
Goods / merch

Latest updates

SHIRYU is still an actively maintained version. Licensed users can update without buying again.

1.7.3

2025.06.06

Pattern-file loading improvements and small refinements.

1.7.2

2025.01.06

Faster pattern drawing, new sample models, and small refinements.

1.7.0

2024.08.28

Automatic animated GIF export for easier sharing on social media.

Update tools
update170.exe / update170.zip
The Japanese BOOTH store also carries trial and update-related items: BOOTH.

Included model samples

SHIRYU includes many ready-to-try models, from animals and vehicles to dragons, buildings, fantasy pieces, and workshop-friendly crafts.

SHIRYU Now on Microsoft Store. Includes 70+ ready-to-build models.

Get it on Microsoft Store