The medium of providing information has transferred from books to media, and currently from Naver to Youtube. In contrast to the period when books were answers to curiosity, today's population utilize Youtube to find a solution to a problem. Through the advancement of media outlets, induced by the transformation and development of industries, we can watch the television anywhere with our smartphones. This has engendered many new occupations in our society. In the past, games were viewed negatively as destroying sociality; however, professional gamers are like celebrities, earning just as much as major corporate workers. In the period where Youtube stars, online streamers, and one-man broadcasters, are considered top occupations that teenagers wish to have, we cannot cling to the old traditional thinking of different occupations. This specific research focuses on professional gamers and online streamers who have succeeded in their field and its business models used. The research will be a guide to those who seek profit from online streaming service business.