In summer of 1979, D.I. was dispatched to Korea to help KMI operation (Korean Microsystems Inc.) in Bupyung, Korea, by AMI (American Microsystems Inc.) and whole family stayed in Hyatt Hotel in Seoul for 3 months. During this stay in Korea, whole family traveled visiting Sorak Mountain, one of the most beautiful mountain in Korea, and Kyungju, the capital of old Shilla Dynasty for about 1,000 years (from about 2,000 years ago to 1,000 years ago)