Yang "Combo" Seung-bin played for SoNiC in the International e-Culture Festival 2013 where they placed last after 2-0 losses to Xenics Storm and Energy Pacemaker.HK.
Combo changed his name to OldB and joined Prime Optimus as a jungler in October of 2013. Prime Optimus competed in HOT6iX Champions Spring 2014 where they upset SK Telecom T1 S in the group stage but they still missed the playoffs. OldB left Prime in August of 2014 to join Team WE. WE played in the X Championship Season 1 where they made it to the quarterfinals but lost 2-0 to Team King.
In Demacia Cup Season 2, Team WE made it all the way to the finals but lost 3-2 to EDward Gaming. OldB was moved from WE to their sister team Team WE Future in December of 2014. Team WE F played in the 2015 Demacia Cup Spring Season where they immediately lost 3-0 in the first round to Qiao Gu. WEF placed second in their group in the 2015 LSPL Spring Season and they qualified for the 2015 LSPL Spring Playoffs. They lost 2-1 in the winners bracket to Qiao Gu and then 2-0 Vici Potential Gaming. WEF lost 3-2 in the round of 16 in 2015 Demacia Cup Summer Season to EDG. WE Future placed second in their group in the 2015 LSPL Summer Season but OldB left shortly afterwards.