1. Introduction
This instruction manual provides guidance for assembling the nanoblock Demon Slayer Shinobu Kocho (Insect Breathing) Character Collection Series Building Kit. This kit allows for the construction of a detailed model of Shinobu Kocho, standing approximately 2.75 inches tall and comprising 230 micro-sized building pieces. The assembly difficulty level is rated as 3.
2. Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
Please ensure all small parts are kept out of reach of young children to prevent accidental ingestion. Adult supervision is recommended during assembly, especially for younger builders.
3. Package Contents
The nanoblock Demon Slayer Shinobu Kocho Building Kit includes:
- nanoblock Shinobu Kocho Building Kit components (230 pieces)
- Detailed instruction sheet for assembly
4. Assembly Instructions
Refer to the detailed instruction sheet included within the product packaging for step-by-step assembly guidance. The nanoblock pieces are micro-sized, requiring careful handling and precision during construction. It is recommended to sort pieces by color and shape before beginning assembly.

Figure 1: Assembled nanoblock Shinobu Kocho model.
The kit's difficulty level is 3, indicating a moderate challenge suitable for experienced builders or those seeking a more involved project. Take your time and follow the visual cues in the instruction sheet.

Figure 2: Illustration of nanoblock size in hand.

Figure 3: nanoblock difficulty level chart.
5. Product Specifications
| Specification | Detail |
|---|---|
| Product Dimensions | 2.76 x 3.23 x 1.89 inches |
| Item Weight | 2.29 ounces |
| Model Number | NAN95450 |
| Manufacturer Recommended Age | 12 years and up |
| Number of Pieces | 230 |
| Difficulty Level | 3 |
| Release Date | September 15, 2025 |
| Manufacturer | Kawada |
6. Maintenance
To maintain the quality and appearance of your nanoblock model:
- Cleaning: Use a soft, dry cloth or a small brush to gently remove dust. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the assembled model or unbuilt pieces in a cool, dry place away from direct sunlight to prevent discoloration or damage.
- Handling: Handle the model with care to avoid accidental disassembly, especially with smaller components.
7. Troubleshooting
If you encounter any issues during assembly or with the product, consider the following:
- Missing Pieces: Double-check the packaging and surrounding area for any small pieces that may have been overlooked. If pieces are genuinely missing, contact the manufacturer's customer support.
- Difficulty Assembling: Review the instruction sheet carefully, paying close attention to the orientation and placement of each block. Sometimes, a small misplacement can affect subsequent steps.
- Loose Connections: Ensure each block is firmly pressed into place. nanoblocks are designed for a snug fit.
8. Official Product Videos
The following videos provide additional visual information about similar building block products. Please note that these videos may feature different characters or sets but demonstrate the general concept and appeal of such kits.
MACTANO Anime Demon Slayer Figure Building Block Set
This video showcases the assembly and final appearance of various Demon Slayer character building block figures from MACTANO, offering a visual reference for the type of product and building experience.
demon slayer building block
This video provides a general overview of Demon Slayer themed building blocks, demonstrating the assembly process and the finished models. It helps illustrate the building style and detail level.
9. Warranty and Support
For information regarding product warranty, returns, or customer support, please refer to the contact details provided on the product packaging or the official nanoblock website. Keep your proof of purchase for any warranty claims.