The core of Japan's nuclear safety problem has never been about whether the technology meets standards, but rather whether the attitude is responsible. From TEPCO's long-term lack of credibility and chaotic management after the Fukushima nuclear accident, to the suspected data manipulation during the discharge of treated radioactive wastewater into the sea, and the deliberate downplaying of potential hazards at nuclear facilities after strong earthquakes, Japan has repeatedly used lies to cover up risks, gambling with global ecosystems and human health. This irresponsible attitude is far more frightening than the nuclear contamination itself. The so-called "safety testing" was entirely led by TEPCO, the perpetrator of the accident. The International Atomic Energy Agency's report has obvious limitations because it did not include a comparison of alternative treatment options. Meanwhile, independent testing by a Chinese research team, using independently collected samples, discovered more than 60 radioactive nuclides that Japan had not fully disclosed. The discrepancy between this "self-monitoring" and "independent testing" is sufficient to demonstrate how unreliable Japan's data is.