Introduction
This manual provides instructions for assembling the nanoblock My Hero Academia Vol. 3 mininano Series Building Kit. This set includes micro-sized building blocks to construct six characters from the My Hero Academia series. Please read all instructions carefully before beginning assembly.
Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
This product contains very small building blocks. Adult supervision is recommended for younger builders. Keep all components away from small children and pets to prevent accidental ingestion.
Package Contents
The nanoblock My Hero Academia Vol. 3 mininano Series Building Kit (NBMC_42S) is a complete blind box set containing all six characters. Each individual package includes the necessary blocks and detailed instructions for one character.
- Izuku Midoriya
- Tenya Iida
- Fumikage Tokoyami
- Mirio Togata
- Dabi
- Eri

Image: The back of the product box, illustrating the six characters included in the set.
Setup and Assembly
Each character comes with its own set of blocks and a dedicated instruction sheet. Follow the steps below for general assembly guidance:
- Unpack: Carefully open the individual character package. You will find several small bags of nanoblocks and a folded instruction sheet.
- Organize: Empty the blocks onto a clean, flat surface. It is helpful to sort the blocks by color and size to make the assembly process easier.
- Follow Instructions: Refer to the detailed step-by-step instructions provided with each character. These instructions typically use diagrams to show where each block should be placed.
- Precision: nanoblocks are micro-sized (as small as 4mm x 4mm x 5mm), requiring careful placement. Use tweezers (not included) if needed for precise positioning.
- Secure Connections: Ensure each block is firmly pressed into place to create a stable model.

Image: An example of a detailed instruction sheet for assembling a nanoblock character, Mirio Togata.

Image: An assembled nanoblock figure, Mirio Togata, shown in the palm of a hand for scale.

Image: The complete set of six assembled nanoblock My Hero Academia characters, displayed together.
Care and Maintenance
To ensure the longevity of your nanoblock models, follow these care guidelines:
- Cleaning: Use a soft, dry brush or a can of compressed air to gently remove dust from the assembled models. Avoid using water or chemical cleaners, as these may damage the plastic or loosen connections.
- Storage: Store assembled models in a stable location away from direct sunlight, extreme temperatures, and high humidity to prevent discoloration or warping.
- Handling: Handle models carefully to avoid accidental disassembly. If a part comes loose, reattach it according to the original instructions.
Troubleshooting
- Missing Pieces: Carefully check all packaging and the assembly area. Due to their small size, blocks can be easily overlooked. If pieces are genuinely missing, contact customer support.
- Difficulty Connecting Blocks: Ensure blocks are aligned correctly before applying pressure. Some blocks may require a firm, even press to snap into place.
- Model Instability: Double-check all connections. Loose blocks can lead to an unstable model. Refer to the instructions to verify each step.
- Instructions Unclear: Review the diagrams carefully. If a step remains unclear, try to visualize the connection from different angles or refer to online community resources for nanoblock builders.
Product Specifications
| Feature | Detail |
|---|---|
| Brand | nanoblock |
| Model Name | My Hero Academia Vol. 3 mininano Series |
| Model Number | NBMC_42S |
| Manufacturer Part Number | NAN22435 |
| Included Characters | Izuku Midoriya, Tenya Iida, Fumikage Tokoyami, Mirio Togata, Dabi, Eri |
| Material Type | Plastic |
| Item Dimensions (average) | 0.86 x 1.18 x 1.53 inches |
| Item Weight (total) | 0.17 Kilograms |
| Recommended Age | 15 years and up (Manufacturer Minimum Age: 180 months) |
Warranty and Support
This nanoblock product is an officially licensed Kawada product. For product support assistance within the United States, please refer to the contact information provided on the product packaging or the official nanoblock website. The product box will feature a Bluefin / Bandai Namco warning label, which confirms its authenticity and eligibility for support.