Irokebijin Factory Visit: Anime Design, HSS Silicone & Craftsmanship
Irokebijin is the anime-focused brand under Doll Forever and the latest creation of Mizuwali, the designer behind Piper Doll. Known for soft materials, fantasy aesthetics and carefully sculpted faces, Irokebijin brings anime to life with S-TPE and Hyper Soft Silicone (HSS). We visited the production site to see exactly what sets them apart.
Formosa Doll team with Mizuwali inside the Irokebijin workshop. Meeting the creator himself offered insight into how art direction and engineering come together in every Irokebijin design.
Why We Visited Irokebijin Sex Dolls
At Formosa Doll, we feature only brands we have inspected in person. Irokebijin sex dolls are renowned for anime-style faces, refined body lines and advanced materials. We wanted to verify how S-TPE and HSS are used in practice, and to understand Mizuwali’s approach to build quality and quality control.
From Showroom to Workshop: First Impressions
The first facility we entered was divided into three areas:
- Showroom. A full line-up of Irokebijin and Piper Dolls where we compared formats and materials side by side. We could feel the difference between S-TPE bodies and HSS silicone for softness, elasticity and durability.
- Photo studio. Mizuwali personally shoots the promotional images for each new release here. The output stays consistent and true to the design intent.
- Make-up room. Every head receives a hand-applied finish that creates the distinctive Irokebijin look.
Formosa Doll team admiring an Irokebijin Hatsune Miku-inspired cosplay doll during the factory visit. The S-TPE and HSS body showed exceptional softness and elasticity, confirming why Irokebijin remains a leader in anime-style craftsmanship.
Each original Irokebijin head carries a discreet stamp showing the brand name. With some indicating series number and model name — a mark of authenticity and traceability verified during our factory visit.
Other Irokebijin models feature a stamp indicating the year the mold was created. This mark refers to the mold’s production date, not the doll’s manufacturing date.
Inside the Irokebijin Factory
The production area is clean and well organised. S-TPE and HSS manufacturing are kept on separate floors to control process variables and maintain consistency. One discovery stood out to us. Irokebijin produces its own skeletons in-house and tests them each morning for flexibility and durability (during our visit, the Formosa Doll team also witnessed the sister brand Piper Doll’s flexibility QC in action, a rare look at their shared engineering precision). This gives full control over one of the most critical components of a doll.
Formosa Doll team documenting the skeleton positioning stage before STPE injection at the Irokebijin workshop. Each frame is carefully aligned to ensure balanced weight, symmetry, and lifelike movement once the doll is cast.
Irokebijin team performing the trimming stage right after mold extraction. Formosa Doll documented this delicate process where excess silicone and TPE are refined by hand for a flawless surface finish.
What Makes Irokebijin Special
- Face design and features. The "following eyes" and removable eyebrow systems keep improving expression and ease of customisation.
- Permanent make-up. The artist demonstrated wash-resistant finishes that remain intact even when cleaned with soap.
- In-house skeletons. Consistent joint behaviour and smooth movement thanks to controlled production and testing.
- Material quality. S-TPE reduces weight and cost while keeping high durability. HSS is exceptionally soft, elastic and tear-resistant, which supports natural posing.
- Size range. From 90 cm through 156 cm in S-TPE and up to 160 cm in HSS, collectors can choose petite or full-scale models.
Close-up of the new permanent make-up application shown during our visit.
A 95 cm (left side) and 90 cm (right side) Irokebijin Mini Doll shown next to a 190 cm team member for scale.
Irokebijin Uniqueness
Irokebijin does not simply imitate anime. The team refines the style with practical details that matter in daily use.
- Pocchari versions. Fuller body types for collectors who prefer curvier silhouettes.
Formosa Doll team observing Irokebijin’s new Pocchari body design in the workshop. Mizuwali explained that its voluptuous curves were inspired by the Venus of Willendorf.
- Customisable moving eyes and 3D brows. Removable, adjustable systems make it simple to change expression and gaze.
- Detachable mouth options. The detachable oral unit (non-fading) allow an easy switch from play to display.
- Consistent faces across different sizes. Enjoy the same design from mini to 155 cm and above, ideal for collectors.
Formosa Doll team testing the new Irokebijin detachable oral unit on Koharu face, designed for both play and display. The non-fading insert fits easily and allows quick setup changes; keeping Koharu’s sculpt realistic and versatile.
Formosa Doll team demonstrating Irokebijin’s new realistic moving eyes system on the Koharu head. Eye colour and 3D eyelashes can be replaced in seconds, offering collectors unmatched realism and personalisation.
Would you like to see more images up close?
Message us, we might have the video or the picture you are looking for and provide you with more info and on-site insights from our latest Irokebijin factory visit.
Why Formosa Doll Partners with Irokebijin
Mizuwali has chosen a clear path that puts fantasy aesthetics and build quality first. You will not find AI or robotic gimmicks here. And to be honest, these dolls don't need any of those.
With Irokebijin you get anime-inspired design brought to life through skilled sculpting, soft-touch materials and steady refinements. We saw the process, tested the skeletons and felt the materials. That is why Irokebijin sits confidently in our curated range.
