Kwon "Helper" Yeong-jae joined CJ Entus as a top lane substitute in May of 2015. He played his first professional game in July against the Jin Air Green Wings during SBENU Champions Summer 2015. CJ Entus placed third in the regular season but lost 3-0 to the KOO Tigers in the second round of playoffs. CJ had enough circuit points to qualify for the 2015 Season Korea Regional Finals but they lost 3-2 to Jin Air. Helper did not play in playoffs or the regionals.
Helper left CJ Entus in November 2015 and later joined Samsung Galaxy.
During the 2016 LCK Spring Season, Samsung Galaxy went 10-8 in sets overall. After looking like they could clinch the fifth and final seed for the Spring Playoffs, Samsung Galaxy were unfortunately denied by the surging Afreeca Freecs, who beat them by the game score tiebreaker, giving Samsung sixth place for the split. Helper did not play a game during the Spring season.
During the 2016 LCK Summer Split, Samsung stayed a top four team throughout the split. Helper only played three games during the regular season - 2 wins against MVP and 1 loss to the Afreeca Freecs. They managed to take fourth place with a 12-6 series record, seeding them into the first round of the 2016 LCK Summer Playoffs. Though they summarily defeated the Afreeca Freecs in the first round, they were matched against KT Rolster, a team who they had never managed to beat post-S4 in the LCK era, and they were swept 3-0, giving them fourth place in the season. Helper only played one game - a loss to KT Rolster. Their accumulated points gave them enough to qualify as the second seed in the 2016 Season Korea Regional Finals. Samsung managed to beat the Freecs 3-1, moving up to the finals in a rematch against KT Rolster. Samsung upset the heavy favorites 3-2, breaking a 19 game losing streak and giving them the third seed to worlds. Helper did not play in the Regional Finals.
At the 2016 Season World Championship, Samsung were drawn into Group D along with NA's Team SoloMid, China's Royal Never Give Up, and Europe's Splyce.