Oboyu is a semantic search system designed to create an intelligent index of text-based documents, with particular strength in processing Japanese language content. It indexes directories of text files, embeds their content using vector representations, and retrieves the most relevant documents based on user queries. Leveraging specialized Japanese tokenization and encoding detection, Oboyu excels in multilingual document collections, offering both a command-line interface and an MCP server mode for network-accessible document search.