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:

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.

The story of Origami Ryujin and Urashima Taro has been retold and adapted in various forms of Japanese art and literature, including origami. The legend has inspired many origami designs, including the iconic origami crane, which is said to have the power to grant wishes.

As of 2025, fewer than 200 people globally are documented to have folded a complete Ryujin 3.5 from a single square without pre-creasing failures.

Origami Ryujin, also known as Origami Dragon God, is a legendary figure in Japanese folklore. According to myth, Ryujin was a powerful dragon god who ruled over the sea and had control over the tides.

Would you like to know more about Origami Ryujin or Japanese folklore?

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.

Satoshi Kamiya developed the Ryujin in several iterations, each increasing in anatomical detail and technical difficulty:

The defining feature of the Ryujin is its dorsal and ventral scales. From a topological perspective, the paper is a continuous surface (genus 0: a disk). To create scales, Kamiya employs a . Each scale is an isosceles right triangle of paper that is folded to stand perpendicular to the body’s spine.

The Ryujin 3.5 relies on two interlocking mathematical frameworks:

Satoshi Kamiya’s Ryujin, particularly the 3.5 version, is considered a pinnacle of complex, single-square origami, demanding over 100 hours of folding and high-precision techniques like intricate scale tessellation. Achieving this masterpiece requires advanced mastery of crease patterns, specialized paper, and often, internal support structures for its complex, multi-layered design. For detailed guidance on folding this, explore the YouTube tutorial by Daniel Brown and related Reddit community discussions .