Charles R. Tokoyama, CEO of Japan Insiders, provides advice on how to learn Japanese fluently quickly and efficiently. He believes that the key is through immersion by speaking it daily with native speakers, reading books written in the language, and watching movies/TV shows with subtitles. It took him 3 months to reach basic conversational level Japanese and 2 years to become fluent, showing the dedication and hard work needed to master a foreign language. With enough time and effort, anyone can become fluent in a foreign language!