Oh "Mach" Hyun-sik joined KT Rolster in May of 2015 as a substitute AD carry. He played for the team in Challengers Korea Summer 2015 where they finished in fourth place, missing playoffs. Mach did not play any games in LCK for KT Rolster.
KT played in the 2015 LoL KeSPA Cup where they lost 2-1 in the semifinals to CJ Entus. Mach did not play in this tournament either. Mach left KT on December 1st. He renamed himself to "MaHa" and joined MVP as their new AD carry shortly afterwards.
During the Challengers Korea 2016 Spring Season, MVP performed admirably during the regular season with an 85% winrate, giving them first place with 34 pts. This seeded them directly into the finals of the Challengers Korea 2016 Spring Playoffs, where they were upset 3-2 by ESC Ever. However, they still earned a spot in the 2016 LCK Summer Promotion, where they beat Kongdoo Monster 3-1 to earn a spot in the 2016 LCK Summer Season.
During the 2016 LCK Summer Split, MVP managed to go 7-11 in series, netting them sixth place overall. Unfortunately, this made them barely miss the 2016 LCK Summer Playoffs for the season. Their lack of circuit points from the spring season of the 2016 LCK Spring Split made them unable to qualify for the 2016 Season Korea Regional Finals as well.