Tokyo, G-Day. During that fateful day, a young Boy, Manafu, as well as his father, were among the other citizens fleeing from a swarm of Kaiju called "Gyaos." His father died that day at the maws of the Gyaos, but Manafu lived to see another, larger Kaiju, the legendary Gamera, incinerate the entire swarm in a matter of seconds. However, much of Japan had been reduced to an almost dystopian shell of it's former self. 2 Years Later, Manafu is happily adopted as the surrogate son of Monarch Soldier Cameron Harrigan. As they continue to bond, a new threat appears in the form of a triple Kaiju threat, but luckily Gamera also returns.