ikssu joined KT Rolster as a subtitute in 2014 but did not play a single game for the team before he left in 2015. He later joined Rebels Anarchy when they qualified for the 2015 LCK Summer, he became the starting Top Laner after cvMax retired.
In Summer of 2015, ikssu and team finished 8th in the round robin stage with a record of 5W-13L. The team did not qualify for the playoffs but were qualified for 2016 Spring. In the 2015 LoL KeSPA Cup, Rebels Anarchy ended their run at 5th-8th place after beating NaJin e-mFire in Round of 12 but lost to Challenger team Ever in the Quarterfinals.
On December 30th, Afreeca Freecs acquired the LCK spot of Rebels Anarcy along with its roster, including ikssu, lira, Mickey, Sangyoon and SnowFlower.