Although the globalization of Japanese-language education and the demand for Japanese-language education in universities abroad has increased, there are still many issues in using ICT in the existing language teaching methods. This research focuses on existing problems with Oral Correction Feedback (OCF) from teachers in the actual class of language education, enables quantitative OCF by designing a scalable Japanese language education platform. This research aims to improve the scalability, efficiency, and effectiveness of Japanese language education, evaluating in actual Japanese language classes overseas. This research will contribute to the next-generation teaching methods that guarantee students learning effect qualitatively and quantitatively.