The most refined and famous version. It is characterized by its fully-scaled body, elaborate horns, and whiskers. Kamiya's own fold of this model is so labor-intensive that he famously stated he would never fold it again. The Challenge: Why It’s "Super-Complex"
Satoshi Kamiya began designing dragons as a teenager. The Ryujin series evolved through several iterations (1.0, 2.0, 3.0) before culminating in the 3.5 version. Unlike Western dragons, the Ryujin (Dragon God) is characterized by an elongated, serpentine body covered entirely in scales. Prior to Kamiya, no origami artist had successfully rendered hundreds of individual scales without cutting or gluing.
During his visit, Urashima Taro meets Ryujin's daughter, Otohime, and they fall in love. However, as much as Urashima Taro enjoys his time in the palace, he eventually longs to return to his life on land. origami ryujin
Folding a Ryujin 3.5 is not just about following steps; it is a months-long test of endurance and precision. Ryujin 1.2 by Kamiya Satoshi TUTORIAL part 1
The choice of paper is non-negotiable for the Ryujin. Standard origami paper (Kami) lacks the wet-strength and fiber length to survive 1,000 folds. Successful folds of Ryujin 3.5 utilize: The most refined and famous version
The Ryujin is exclusively a model. Unlike 22.5-degree origami (which uses diagonal folds), box pleating relies on a grid of perpendicular lines (usually a 48x48 or 96x96 division). This grid allows for parallel, repeating structures—essential for scales. The scales are formed by a cascade of "sink folds" arranged in staggered rows, similar to a staggered array in crystallography.
Most failed Ryujins fail not at the complex head, but in the middle of the body due to paper fatigue . Each scale fold weakens the fiber matrix; after 200 scale folds, the paper’s tensile strength drops below 40% of its original value. Prior to Kamiya, no origami artist had successfully
Satoshi Kamiya developed the Ryujin in several iterations, each increasing in anatomical detail and technical difficulty:
In technical origami, a "circle packing" is a diagram where each circle represents a flap of paper (e.g., a horn, a claw, a tail tip). The Ryujin’s crease pattern (CP) is a complex network of circles. Analysis reveals:
Kamiya’s breakthrough was algorithmic: he realized that scales could be generated by a repetitive embedded within a larger base. This shifted origami design from sculptural subtraction to mathematical recursion.
Future directions for origami design will likely move beyond the Ryujin’s grid-based logic into curved-crease folding and non-Euclidean surfaces. However, the Ryujin remains the Sistine Chapel of paper: a testament to what human hands can achieve when guided by a divine understanding of the fold.