This document is the **Original Japanese Edition** of the Natural Language OS(NL-OS) whitepaper, authored and supervised directly by Masaya Ochiai. It represents the **primary source** of the NL-OS concept — a new class ofcognitive operating systems written and executed entirely in natural language,running on top of large language model (LLM) kernels. This edition preserves the exact linguistic, conceptual, and structural intentof the original manuscript. All theoretical definitions, design principles,and architectural descriptions (Persistent Layer / Runtime Layer / Meta Layer)are presented exactly as formulated in the Japanese source text. Two derivative editions exist: • **Literal English Edition** A line-by-line linguistic mirror of this Japanese original. • **Adapted International Edition** An internationally optimized rewrite designed for global readability. This document is the authoritative reference for the Natural Language OSecosystem, including ArcOS, PolyAgora, Echoos, and the NL-OS taxonomy.