Choi "Huhi" Jae-hyun joined Bigfile Miracle in February of 2014 as a mid laner. They competed in HOT6iX Champions Summer 2014 but they lost all six of their games and placed last in their group. The roster was released in September of that year to join Quvic E-Sports.
Huhi left Quvic in October 2014 and on the 23rd of the month it was officially announced that Huhi would be the midlaner for Team Fusion. The team qualified for the North American Expansion tournament via the Challenger ladder. They won their first-round match against Team Confusion due to a forfeit from Confusion, and then defeated Enemy eSports 2-0 in the second round. In the offline tournament, Team Fusion narrowly beat Final Five 3-2 after losing the first two games. They then lost to Curse Academy 3-1 and were knocked down to the loser's bracket to face Team Coast. This time, Fusion got ahead 2-0 but then ultimately lost the series and did not qualify for the 2015 NA LCS Spring Season; however, their placement did qualify them for the NACS Spring Season.
After a pattern of losing almost every off-stream game and winning every on-stream game, Fusion finished the NACS season in third place. In the 2015 NA CS Spring Playoffs, Fusion lost 2-1 to Team Dragon Knights and then beat Final Five 2-0 to end in third place. Fusion was forced to face Dignitas for a spot in the 2015 NA LCS Summer Season. Fusion lost the series 3-2 but retained an automatic qualification into the 2015 NA CS Summer Season; however, the team disbanded. Huhi joined Counter Logic Gaming as one of two starting mid laners alongside Pobelter for the 2015 NA LCS Summer Season.
Huhi didn't play in the regular season or the 2015 NA LCS Summer Playoffs. Shortly after CLG qualified for the 2015 Season World Championship, the team announced that Huhi would be substituting for them in the jungle, due to "unresolvable VISA issues" with Xmithie. However, after a few weeks of Huhi scrimming with CLG, the problems were resolved, enabling Xmithie to play after all.
Despite the fact that Huhi hadn't gotten to play a single game live with the team during the 2015 season, in October CLG announced that he would replace Pobelter for the 2016 season as starting mid laner. Doublelift also left the team, after over four years of playing for CLG. He was replaced by Stixxay. In November, CLG attended IEM San Jose, where they defeated Unicorns of Love and Jin Air Green Wings before losing to Origen. Their performance earned them a seed into IEM Katowice, which they attended after the seventh week of the LCS. However, despite being in a strong position domestically, in second place behind only the almost-undefeated Immortals (to whom CLG had handed their only loss of the season the week before), CLG were eliminated immediately from Katowice, losing first to SK Telecom T1 and then to Fnatic.
CLG entered the LCS playoffs in second place, still behind Immortals, and still the only team to have beaten Immortals in the regular season. They won their semifinal series against Team Liquid in five games, winning the last game with a double teleport play to catch out Piglet and close out a win. Despite seeding expectations, their finals match was against TSM, who had 3-0'd Immortals the week before. This series also went to five games, and CLG once again won, qualifying for the Mid-Season Invitational.
Returning to North America for the Summer Split, CLG were expected to be at the top of the league after their MSI performance. However, not only did they fail to achieve that, but they weren't even in the top half of the standings until week 6. From there, they climbed to a fourth place regular season finish. In the playoffs, CLG first faced off against Team Liquid, whom they beat 3-1, before falling to TSM 3-0 in the semifinals. Crucially, one of Huhi's signature mid lane champions Aurelion Sol was found to have a bug partway through their first game, and the game was remade with Aurelion Sol disabled for the rest of the playoffs (though it was generally accepted that TSM would have won regardless). CLG lost the third-place to Immortals but automatically qualified for the World Championship based on Championship Points due to TSM's finals win over Cloud9.
CLG were seeded into Group A at Worlds, alongside the ROX Tigers, G2 Esports, and wildcard Albus NoX Luna. Going into the group, CLG and G2 were seen as contenders for the second seed, while Tigers and Albus NoX were expected to finish first and last, respectively. Instead, CLG dropped both of their games to the wildcard team, and ANX skyrocketed to a second-place group stage finish while G2 collapsed into last place; CLG ended their Worlds run in third with a 3-3 record.