Gojiza was born into the world. ANd then he escaped. He battled the young Goagle Clan. Then he was "adopted" by G3. The Geagle was put into the Hyper-Growth Chamber and then they were released on G3 and Gojiza. Then the G-Clones. (Goagle Clan.) Broke free. Goagle was made and grown and sent after the escapees. Then there is a fierce battle and G3 and Gojiza are the only ones not dead or near dead.
Then came Atomic Godzilla. Gojiza and G3 arrived after AG had become PAG. G3 tried to beat AG, but couldn't. And it was Gojiza who pushed forward and overcame all obstacles. He defeated PAG.
Then Armageddon came. There was a long battle between him, his father, and Armageddon. In the end, G3 won, but melted down and gave Gojiza a lot of power.
Then Keres came along. Gojiza made friends with the Katris Klan, and protected them from Keres, but eventually, Gojiza and Keres went all out and it resulted in Gojiza becoming Earth, then Imperial Power form. Keres was thought to have died, but he merely became a single cell organism.
Then Gojiza fought against Brimstone in the Kaiju Quest series. He helped battle, and in the end contributed to Brimstone's entrapment. Then Gojiza went to Earth and grew up. He helped fight Hybrid, but later on, he grew up. And he became too powerful to hold it into his own body. So he inverted it and warped dimmensions. The dimmension he had entered was the one with Brimstone. And then Gojiza unleashed all of his power and destroyed the entire dimmension they were in.
But some say the Seven Sages saved his soul and now they keep it until the other five choosen ones are found.