Mobidays is a mobile marketing company focused on the South Korean mobile market, established the Mobile Advertising Research Institute in August 2014 to gather and disseminate information on the industry. The 'm report' is a monthly publication providing insights into domestic and international mobile market trends. The document discusses significant topics such as the performance of major gaming companies, the state of mobile usage in South Korea, and the competitive landscape between Naver and Daum Kakao.