This paper introduced a case course with desktop web-conferencing or videoconferencing as a way of synchronous computer mediated communication (SCMC) for foreign language education in Japan. Research questions were to see the effects of video-conferencing on the learners’ speaking ability and general English language proficiency, and also to see how the learners’ international posture had changed over time. Eight pairs of Japanese EFL learners in a university experienced two semesters with 10 web-conferencing sessions per semester with a teacher of English living in the Philippines. The task for the pairs was to discuss a social issue together with the teacher through Skype® weekly. Their goal was to exchange mutual ideas over a designated topic. To lower the anxiety to speak in English as well as to practice discussion among Japanese students, there was a 90-minute preparation period prior to each videoconferencing session. Pre test and post test results showed significant improvement in fluency, particularly in the amount of speech, and complexity in their speaking ability. The learners also demonstrated progress in English proficiency. Their international posture, however, stayed still except for the progress in the attitude to working and participating volunteer activities overseas. The results indicated that the instruction based on videoconferencing helped improve learners’ language and their global mind as a part of international posture.