The advent of COVID-19 along with the rapid development of online devices has triggered the evolution of online learning, which its development has turned into an important modern teaching and learning tool. However, various information, such as its practicality, descriptions, innovative ways to apply and customise it to cater to a specific course is much needed for any electronic tools to be adapted into the teaching or learning a foreign language. What motivates the researchers to conduct this study is that with the evolution of online learning, Japanese language instructors need to provide more interesting and appropriate online learning materials to help students' cognitive understanding as well as to facilitate the online teaching and learning session. Generally, the purpose of this study is to investigate how students at one of Malaysia's largest public universities have been using Minato to learn Japanese online. Specifically, this study is conducted to explore how Cognitive, Situational, and Behavioural factors would affect students' online learning process. This study employs quantitative methods. 410 students who adopted Japanese language as an elective course participated as the sample of this study. A survey containing forty-seven questions about Cognitive, Situational and Behavioural factors is managed online. The survey is adapted from the Social Cognitive Theory by (Bandura, 1986). The findings have shown that between these three factors, Situational factors display a great imprint on the student's learning process. Behavioural factors rank second and the least impactful is the Cognitive factors. It has clearly shown that Minato has a significant influence on learning Japanese culture, vocabulary and pronunciation. However, Minato scores low among the students when it comes to assisting their understanding on grammar. Thus, it is suggested that more specific research on certain aspects of Japanese online learning should be conducted because online learning tools are not completely perfect without certain flaws.