Jakkid "Witch" Krinbai joined Bangkok Titans in April as the starting AD carry. His first major appearance with the team was in the final week of the Spring season of the 2013 Garena Premier League (GPL), where he was unable to propel the team out of last place. He changed his name to Sek and played with the team for the entirety of the 2013 GPL Summer. While the team improved with a 6th place finish, it continued to struggle to make an impact in the Southeast Asian scene. In the local Thai scene, Bangkok Titans was more dominant. Sek competed with the team in the 2013 LCS Pro League Thailand, achieving a 1st place finish in playoffs, and in the Thailand Grand Championship 2013 (where he played top lane), coming in 2nd.
Sek stayed with Bangkok Titans for the 2014 GPL Winter, but the team only managed to win one game and was eliminated in Group Stage. He left the team afterward, joining one of their biggest domestic rivals, MiTH Flashdive. He competed with the team in the local 2014 Thailand Pro League (TPL), but the team was unable to usurp Bangkok Titans' regional dominance. He left the team and substituted for Bangkok Titans during the first two weeks of the 2014 GPL Summer, playing both AD carry and top lane.
At the beginning of 2015, Sek changed his name to Jakkid and joined 3 Piglet, a new team with many former members of Bangkok Titans and MiTH Flashdive. Jakkid played a variety of roles for the team, including AD carry, jungler, and mid lane. The team performed well during the 2015 TPL Summer, but ultimately came in 3rd, behind Bangkok Titans and Go To Sleep.
At the beginning of the season, 3 Piglet disbanded. Jakkid changed his name to N0 Game No Life and joined Go To Sleep as its starting jungler. The team finished in 2nd place in the 2016 TPL Spring, behind Bangkok Titans. Midway through the tournament, N0 Game No Life changed his name to Capnakub. Following the sudden departure of Bangkok Titans' longtime top laner WarL0cK, Capnakub changed his name back to Sek and returned to the team to fill the vacancy. In the 2016 GPL Spring, he split time playing top lane with InTreso, although Sek played the majority of the games. After a 2nd place finish behind Saigon Jokers, the team rearranged its roster, with Lloyd playing top lane and InTreso at AD carry. Sek became the primary substitute, filling in for various roles as needed. In the 2016 GPL Summer, he became the starting jungler, while 007x became a substitute. The team finished in 2nd place.