Inviting challenges openly, Dr Dong-Keun Shin proclaimed that if none occurred, he would lead people in computer science from the beginning of the 21st century. Born in 1959, he grew up in Seoul, Korea. Even in Kyonggi Elementary School he had a dreamlike interest in creating his own theoretical world. In his youth the calculus of British scientist, Sir Isaac Newton, and geometry of Greek scientist, Euclid, set clear examples for him to understand the most valuable achievement that a human being has ever had. After graduating from Posung High School, he emigrated with his family to the USA in early 1978, for better education. In the USA he was amazed by the Grand Canyon as a God-given wonder and impressed by the computer, a brilliant human feat of engineering. He had a chance to understand not only the potential of computers, but also the possible computational theories that he could obtain in the early stage of computer science. To realise his boyhood dream, he majored in computer science at the University of California at Berkeley and at the George Washington University, hoping to gain either scientific theory for his academic pursuit or at least some engineering experience for his livelihood.