Nuttapong "LeesIn Mid" Menkasikan joined Flashdive in Spring 2013 as the starting mid laner. He competed with the team in the 2013 June LCS Pro League Thailand, achieving a 1st place finish with a 12-3-0 record. After their successful performance, the team was sponsored by Made in Thailand Esports. The team renamed to MiTH Flashdive while LeesIn Mid renamed to G4. They continued to perform well in the 2013 LCS Pro League Thailand but lost to Bangkok Titans in the finals after a close 3-2 series. G4 got his revenge in the Thailand Grand Championship 2013, where he and the team defeated Bangkok Titans 3-0.
In March 2014, G4 and teammate 007x left MiTH Flashdive to join Bangkok Titans. Although Bangkok Titans had always been a dominant force in the local Thai scene, it had consistently finished near the bottom of the Garena Premier League (GPL). With G4, however, the team managed to secure a playoffs spot in the 2014 GPL Summer. Although the team was eliminated in the quarterfinals by ahq e-Sports Club, their performance was strong enough for the team to retain the majority of the roster for the next season.
Bangkok Titans continued to find success in the 2015 GPL, which had been changed to exclude the historically-dominant Taiwanese teams. In Spring, the team managed a 2nd place finish and subsequently qualified for the 2015 International Wildcard Invitational when the 1st place team, Saigon Fantastic Five, was unable to attend. At IWCI, the team performed well, going undefeated in the Round Robin stage. In the playoffs, however, they were eliminated 0-3 by the eventual winners, Beşiktaş e-Sports Club.
The team returned for 2015 GPL Summer, where they achieved a 1st place finish and qualified for the International Wildcard Tournament in Turkey. They defeated Oceania's The Chiefs eSports Club in the finals to qualify for the 2015 Season World Championship. They were placed in group C, along with SK Telecom T1, EDward Gaming, and H2k-Gaming. Unfortunately, they failed to win a single game and were knocked out of the tournament in last place. Despite the team's record, G4 managed to hold his own against world-renowned mid laners like PawN and Ryu, even putting out impressive individual performances in a few games. G4 was later voted as the mid laner to represent Southeast Asia during the International Wildcard All-Star Melbourne 2015.
G4 remained with Bangkok Titans for the Spring season of the 2016 Thailand Pro League (TPL), where they went undefeated over 25 games for a 1st place finish. At the 2016 GPL Spring, the team finished in 2nd place, losing 3-1 to Saigon Jokers in the finals. The team also finished in 2nd place at the 2016 GPL Summer. After the tournament, G4 left the team.