The purposes of the study are to investigate CHLS (Cyber Home Learning System) in online video conferencing environment in primary school level and to explore the students' responses on CHLS-VC (Cyber Home Learning System through Video Conferencing) in order to explore the possibility of using CHLS-VC as a supportive online learning system. The subjects consisted of 96 primary school students from 4th to 6th grade in South Korea. The major findings of the study are as follows. First, the students preferred CHLS-VC over CHLS and showed positive perspectives toward CHLS-VC. Second, the students preferred the combination of voice and text chat over using voice or text chat, and the frequency of students' questions was higher in online than in offline classes. Finally, the students' perspectives on the effectiveness of CHLS-VC were positive in comprehension and increase in score. They thought that scores have increased in the respective academic subjects as well. Based on the results, it is concluded that CHLS-VC can fortify the learning process and foster student to teacher interaction. It seems that CHLS-VC is a useful supplementary online learning system for the formal curriculum, and implications based on pedagogical consideration, and suggestions for further studies are provided. (Contains 2 figures and 5 tables.)