Known for his service in the Zephyr jaeger corps, Garcia eventually left and found employment in the Revache mafia, serving as Marconi's right-hand man.
Zero and Ao no Kiseki
When two mafioso returned after they were defeated alongside their mechanical hounds by the Special Support Section, Garcia was enraged that they lost to some "kids" and prepared to punish them for their failure. Marconi stopped him from doing so however, as they had to make sure the Schwarz Auction would proceed as planned.
Garcia later oversaw the security measures in place during the Schwarze Auction. He somewhat recognized Lloyd and tried to take him aside for questioning, but was stopped by Mariabell Crois. Upon realizing that there were intruders in the auction, Garcia quickly rounded up some men and found their culprits; the Special Support Section. Garcia appeared to be unaware that the mafia were involved in human trafficking. Randy was prompted to go all-out against Garcia, who intended to do the same, but they were interrupted when Sergei and Zeit appeared to bail the team out, much to his frustration.
Marconi later got involved in the Gnosis trade, gaining a connection with Joachim Guenter. Joachim gave the mafia ample amounts of Gnosis, which some of the mafioso used to storm the Heiyue crime syndicate and distributed it amongst the general populace. When the mafioso who used Gnosis began to go insane, with some of them turning into demons, Garcia accompanied Marconi to confront Joachim over its use. Marconi and a few others were sent to a cell in the Sun Fort, while Garcia resisted; despite his immense strength, he was eventually restrained by the Gnosis-controlled mafioso, and injected with Gnosis.
He was later seen outside the chamber in the Sun Fort after the SSS team and bracers defeated Ernest Reis. The team briefly fought Garcia, who then attempted to demonize. Randy was able to snap him back to his senses by appealing to his jaeger pride, upon which he scoffed him off as a "big shot". Garcia stated that he had been suspicious of Joachim from the start, lamenting his inaction. Lloyd informed him that he would be arrested with the other mafioso, but Garcia did not mind, stating that he deserved it for being gullible. He then told the team that they had better not lose to Joachim before collapsing from exhaustion.
Zero and Ao no Kiseki