Jin "Blanc" Seong-min (Hangul: 진성민) is the mid laner for Team ROCCAT.
Jin "Blanc" Seong-min played for the Jin Air Green Wings as a top laner in Challengers Korea Summer 2015 under the name "Ham". He only played one series against Winners.
Ham was moved up to the main roster as a mid laner on January 6th, 2016 under a new name, "Blanc". He did not play a game in the 2016 LCK Spring Split. During the 2016 LCK Summer Split, Jin Air went 7-11 in series score, netting them seventh place overall in the split. Blanc shared the starting midlane spot with Kuzan. This made them barely miss the 2016 LCK Summer Playoffs for the season. However, their fourth place finish from last season gave them a berth into the first round of the 2016 Season Korea Regional Finals. In a close set against the Afreeca Freecs, Jin Air was defeated 3-2, ending their season.