Lee "Lee" Ho-jin joined NaJin Black Sword on May 16th, 2014. He went by the name "Hojin" until he joined Sword. The team attended HOT6iX Champions Summer 2014 where they advanced from their group with a number 1 seed but then were eliminated 3-2 in the quarterfinals of the tournament by SK Telecom T1 S.
On October 31st 2014, it was announced that Lee had parted ways with NaJin Black Sword. On November 14th, 2014, Lee joined the newly formed HUYA Tigers together with Smeb, kurO, PraY, and GorillA. The team played in the Champions Spring 2015 Qualifiers along with Incredible Miracle, Prime Clan, and Xenics, where they finished 2-1 and qualified for Champions Spring 2015. The team then renamed to GE Tigers. GE started out unarguably the top team in Korea at SBENU Champions Spring 2015 and earned themselves an invitation to the IEM Season IX World Championship in March. However, after defeating Cloud9 and SK Gaming to win their group, they lost 2-1 to Team WE in the semifinals. This defeat was considered by many casters and analysts to be the biggest upset to date in the entire history of League of Legends competition. They qualified for the finals of the OGN playoffs because of their first place finish in the regular season. Unfortunately, they lost 3-0 to SK Telecom T1 in the finals and placed second. After the conclusion of the spring season, Lee renamed to Hojin. The team renamed to the KOO Tigers prior to the start of SBENU Champions Summer 2015. Shortly afterwards, Wisdom joined the team to share the starting jungle position with Hojin. KOO placed fourth in the regular season and qualified for the playoffs but lost 3-2 in the semifinals to KT Rolster. Because SKT won the finals, KOO still qualified for the 2015 Season World Championship as the second seed due to circuit points. KOO was placed into a group at worlds with Counter Logic Gaming, Flash Wolves, and paiN Gaming. They placed second, ending with a 4-2 record. They beat KT Rolster 3-1 and Fnatic 3-0 to make it to the finals against SKT. However, they finally fell in the finals with a 3-1 loss.
Soon after Worlds, Koo dropped the team as a sponsor and they renamed to the Tigers. The Tigers played in the 2015 LoL KeSPA Cup but they were upset in the first round 2-0 by SBENU Sonicboom. Hojin retired on December 7th.