A kaiju emerges from Mars and levels Tokyo in real time, no time-skip, no mercy. Dr. Narasaki and his mecha Miroku face it alone because evacuation failed and the military is useless. This is a 50-minute film that moves like a disaster happening in front of you, every second counting, every shot showing the weight of something that should not exist on Earth.
Humanity's overpopulation crisis has pushed civilization to terraform Mars into a second home, but when a returning spacecraft crashes into Tokyo, something emerges from the wreckage that wasn't supposed to make the journey back. Negadon, a colossal creature of devastating power, begins tearing through the city with no clear weakness and no sign of stopping. The military's conventional weapons prove useless against the monster's raw destructive force, leaving Japan scrambling for answers as casualties mount. Dr. Narasaki, a brilliant scientist with an experimental giant robot called Miroku, becomes humanity's last defense. What was designed as a defensive platform must now transform into something far more: a weapon capable of matching Negadon's overwhelming strength. As the doctor pilots Miroku into direct combat with the creature, he uncovers the uncomfortable truth about what Negadon really is and why it's so determined to destroy everything in its path. Negadon delivers visceral mecha action grounded in hard sci-fi consequences, where ambition and terraforming dreams collide with biological horror in spectacular fashion.