so basically what I understood is..Babylon and Bale are two different people?
Babylon is a Mercenary Company hiring Mercenaries ! Jin Man, Bale, Pasin, Sung Ji, twin brothers all are worked from that Mercenary Company, Bale is a psychopath kills every people ruthless, so Jin Man told to drop him from his team but company refuse, so Jin Man tried to kill Bale.. But after escaping from death' Bale organised his fellow Mercenaries to get revenge on Jin Man, but it still unclear did Babylon had Bale's back, but there's a scene Babylon manager tells to Bale ' Leave your revenge now, it will take care by company ( Babylon).. so what I understand is Babylon betrayed Jin Man..
So he faked his death to take down entire Babylon Company who are betrayed him..
Kim Hye Jun ( Ji An ) rejected Ji An character role when she offered first, but makers second time went again to give her another choice and said Lee Dong-wook is appearing as Uncle Jeong Jin Man, after hearing that Kim Hye Jun accepted offer without late..
So he faked his death to take down entire Babylon Company who are betrayed him..
Kim Hye Jun in her lastest Interview.