David "Jaeyun" Kim is a North American Zerg player that participated in minor foreigner events before retiring in 2012, including playing for USA B-Team and for University of California, San Diego in the Collegiate Star League. Live casted by Day9, he gained recognition after beating Duke's NonY in a Game 7 Finals Ace match to lead his underdog team to a championship, after being down 3-1.
He returned to the game following the release of Starcraft:Remastered and became a regular streamer on Twitch, showcasing his matches, casting pro games, and coaching newer players. In this era, he competed in the ZOTAC Cup Masters, but was quickly knocked out by Michael and KawaiiRice. Shortly after, he was invited to participate in the Twitch Holiday Bash and placed 3rd after defeating NonY in the runner up match after falling to iNcontroL in the semi-finals. He proceeded to take down Nyoken 2-1 in Starcraft's 20th Anniversary Fight Card Showmatch in 2018 and continues to compete in the BSL 4 Proleague. He is known for his macro-oriented and highly analytical play.