The Japanese are proud of their Self-Defense Forces (JAKDF); about the advanced weapons they possess. This is reasonable, because this is where the rate of Kaiju appearing is higher than anywhere else in the world. Vietnam, where the number of recorded cases of Kaiju - giant monsters appearing can be counted on the fingers of one hand. But this country's power to face the threat of giant monsters has never been underestimated. If not always ranked in the top countries with the strongest defense potential. This is also the headquarters of Reunion Corporation, one of the four leading military contractors in the world. The one who is always ambitious to use his terrible potential to wipe out all Kaiju in the world, once and for all with the infamous line up, "Series 9"