A Kept Man? I Can’t Hide My Identity as a Trillion-Dollar Arms Dealer

To conceal his identity, the protagonist marries into a wealthy family as a live-in son-in-law, and his wife drags him onto a variety show. The whole internet calls him a kept man, but the “life skills” he demonstrates on the show are all at special-forces level. He even chats and jokes in a rare language with the warlord who kidnaps the production crew.