One of the most successful StarCraft II players in the history of the sport known for winning two Global StarCraft II League championships. He spent time playing for Old Generations and SK Gaming, where he was renowned for his Protoss play. He initially announced his retirement in June of 2015.
He started playing with Old Generations in 2010 and won his first tournament, the 2010 Sony Ericsson StarCraft II Open Season 3, at the end of that year.
After coming out of retirement in late 2015, he won the 2015 Red Bull Battle Grounds: Washington, officially making him the first StarCraft player to surpass $500,000 in tournament prize money. His nickname is MC.
He grew up in South Korea, but has travelled throughout Europe and North America to play competitively.
He and Patrik Lindberg have both represented SK Gaming.