Choi "DanDy" In-kyu initially made his debut in Azubu The Champions Spring 2012 under the name YaNgSin as the support player for SuperStar. The team managed to win a game against NEB but they still failed to make it through groups. SuperStar disbanded a short time later and YaNgSin joined MVP White as a jungler under the name Ingoo.
Ingoo changed his name to DanDy prior to start of OLYMPUS Champions Winter 2012-2013. White made it to the quarterfinals but lost 3-0 to NaJin Sword. About a month later, White was renamed to MVP Ozone. They competed in the GIGABYTE StarsWar League Season 2 in China but failed to make it past the group stage. With the additions of dade and Mata, Ozone managed to win the OLYMPUS Champions Spring 2013 finals 3-0 against CJ Entus Blaze in one of the biggest upsets in League of Legends history. They did fairly well in HOT6iX Champions Summer 2013, placing third after losing 3-1 to SK Telecom T1 but beating CJ Entus Frost 3-2 in the third place match. Ozone earned enough circuit points to qualify automatically to the Season 3 World Championship as the second seed from Korea. A week later, both Ozone and their sister team, MVP Blue, were bought by the Samsung organization, forming Samsung Galaxy Ozone and Samsung Galaxy Blue. Ozone disappointed at worlds, dropping out in groups after losing a tiebreaker to Gambit Gaming.
Ozone began the new year with PANDORA.TV Champions Winter 2013-2014 where they managed to make it to the finals but were swept by the undefeated SKT K to end in second place overall. They placed similarly at HOT6iX Champions Spring 2014, losing 3-1 to Blue in the semis but beating Blaze 3-2 in the third place match to finish in third. A month later, Ozone changed their name to Samsung White. HOT6iX Champions Summer 2014 was not much different for the team. They lost 3-1 again to Blue in the semis but they managed to sweep SK Telecom T1 S in the third place match. They were forced to play a tiebreaker against SKT K for the second Korean seed at the 2014 Season World Championship and they managed to sweep them 3-0 for the spot. White came into worlds as the heavy favorites and impressed, only dropping two games the whole tournament. They played a fairly one-sided final against Star Horn Royal Club and took the title with a 3-1 victory. On October 31st 2014, DanDy announced his departure from Samsung White. On November 27th, 2014, DanDy, Skatch, Heart and Mata all together joined Vici Stand Gaming.
At the beginning of the year, Mata and DanDy were moved to the main Vici Gaming roster to compete in the 2015 LPL Spring Regular Season. They competed in the 2015 Demacia Cup Spring Season first and fell in the round of 16 with a 3-0 loss to Invictus Gaming. They ended in fourth in the LPL regular season but they lost in the first round of the 2015 LPL Spring Playoffs, dropping 3-1 to IG. During the 2015 LPL Summer Regular Season, DanDy switched to top after Carry was hospitalized. He played in this new role in the 2015 Demacia Cup Summer Season where Vici made it to the quarterfinals but they forfeited their series against IG. They ended in sixth in the LPL and made it to the quarterfinals of the 2015 LPL Summer Playoffs but they lost 3-2 here to IG.
DanDy switched back to jungle in November of 2015.