I loved the Spanish original, so I came to this one hoping for a reason to exist beyond the brand. The setup is genuinely interesting: a near-future Korea on the edge of reunification, a Joint Economic Area with its own mint, and a crew pulled from both sides of the border. For the first episode I thought the show might actually do something with that. The actors carry it as far as they can. Yoo Ji-tae is a calmer, more clinical Professor than I expected, and I liked him. Park Hae-soo's Berlin has a different kind of menace, colder and more controlled, and Jeon Jong-seo gives Tokyo a bruised edge that makes her narration land. Lee Won-jong as Moscow is the warm heart of the vault. But scene after scene I knew what was coming, because I had seen it before. The story beats, the hostages, the turns inside the mint, the negotiator outside, all of it follows the original so closely that the North-South premise ends up as set dressing rather than the engine. It also looks smaller than the Spanish version, and I never stopped noticing that. I do not regret watching it. I just kept wishing they had trusted their own idea enough to let it be its own show.