Oh "Ohq" Gyu-min played for several amateur teams, including Virtual Throne Gaming and Xenics Blast but he didn't make it to OGN until he joined Xenics Storm as their new AD. The team played in HOT6iX Champions Spring 2014 but failed to win a single game and dropped out in the group stages. However, Ohq's play was impressive, and he was given an offer to join NaJin Black Sword. He joined on May 16th, 2014, as the new starting AD, replacing Pray. The team played in HOT6iX Champions Summer 2014 where they made it to the quarterfinals but lost 3-2 to SK Telecom T1 S.
Due to changed to the OGN rules, Sword and their sister team, NaJin White Shield, were forced to merge, creating NaJin e-mFire. During SBENU Champions Spring 2015, Ohq shared starting time with Shield's former AD, Zefa. NaJin's poor performance in Champions ended with them missing playoffs and taking sixth place overall. NaJin placed fifth in the regular season of SBENU Champions Summer 2015 and qualified for the playoffs but they lost in the first round 2-1 to the KOO Tigers. They earned enough circuit points to make it to the 2015 Season Korea Regional Finals but lost 3-0 in the first round to the Jin Air Green Wings.
NaJin played in the 2015 LoL KeSPA Cup where they lost 2-1 to Rebels Anarchy in the first round. Ohq left NaJin in November to join Team Dragon Knights in NA in January.
Despite their mid laner Ninja being banned for the first two months of the season, TDK finished third in the NACS Regular Season, ahead of Team Liquid Academy and behind Ember. Prior to the playoffs, the team swapped several players with the LCS team Renegades: Alex Ich, RF Legendary, and Flaresz joined TDK while Seraph and Ninja left for Renegades. This roster change appeared to be in Renegades's favor; however, TDK still defeated Ember in the semifinals to advance to the promotion tournament. There they first faced and defeated Team Dignitas in an elimination match before losing to Renegades and then the first-place Challenger team Apex Gaming, falling just short of the LCS.
On May 8th, 2016, Riot released a competitive ruling stating that they had investigated the relationship between TDK and Renegades and found an inappropriate link between the two organizations, with the March roster trade and the sources of financial compensation to the players after the trade being one of the major problems. As a result of their findings, Riot ruled that TDK would be banned permanently from Riot-sponsored league play, and Chris Shim and Sean Shim would individually be indefinitely banned from serving in official capacity to an organization involved in official Riot league play. Despite a deadline of May 18th by which they were forced to sell their seed, it wasn't until May 23rd that the seed was announced as sold to Eanix.
In May, Ohq joined NRG eSports, as part of a rebuilt roster including himself, Quas, Santorin, and KiWiKiD along with GBM from the team's spring split run. The roster proved unsuccessful, and NRG were consistently in eighth place week after week in the summer split until they fell to ninth in week 9. In the promotion tournament, they lost first to Cloud9 Challenger and then to Echo Fox in back-to-back 3-0 sweeps and were relegated to the NACS. Ohq left the team shortly afterwards.