Couger Inc. is a Tokyo-based Japanese technology company founded in December 2006, specializing in the development of Virtual Human Agents—AI-powered digital humans designed to interact with users in a natural, human-like manner. Its flagship platform is called LUDENS, which combines artificial intelligence, IoT, AR/VR, and blockchain technologies to support tasks across retail, healthcare, customer service, and education. One of its notable AI characters is Rachel, who has been deployed in over 7,000 convenience stores in Japan. Couger emphasizes transparency in AI (XAI) and maintains research collaborations and international recognition for projects involving natural language processing, computer vision, and medical AI. The company is led by CEO Atsushi Ishii and operates with a team of approximately 30–50 employees from its headquarters in Shibuya, Tokyo.