Developed and released a Japanese Manuscript Counter and Manuscript Page Calculator plugin for the obsidianmd/obsidian-releases repository, focusing on enhancing Japanese manuscript workflows within Obsidian. The plugin provides real-time character counts and calculates manuscript pages based on a 400-character-per-page standard, accurately handling line breaks and paragraphs to support precise text analysis. Built using JavaScript and TypeScript, the solution leverages the Obsidian API for seamless integration and employs robust text processing techniques for multi-byte characters. The work emphasized code quality and feature completeness, streamlining manual counting tasks and enabling faster publishing planning for users working with Japanese manuscripts.