A Long time ago during the Permian Period of Earth's History, the Earth was Ruled by Massive Monsters known as Kaiju with the Rulers being the Gojirasaurs who could beat any other monster in their path.

The Very Last of them survived during the last Ice Age but one very Last Gojirasuaur exists and lives on an Island deep in the Pacific Ocean surrounded by Other Kaiju ruling them all, as This was the Queen of Monsters Godzilla.

???: Mama? Mama, where are you? I got Bored! Are you back from your trip yet?

This is Not Godzilla. This is her Only child, A Daughter named Goji Junior, who serves as her  Heir to the Queen of the Monster despite what she calls her "A Runt".

Junior continued to walk around that despite her small size compared to other kaiju she was big enough to scale small mountains by the top of her head, but suddenly A Huge wave came out of the Ocean and A Giant Kaiju came out of the water as Junior was excited!

Junior: MAMA!

Junior then ran and jumped into the water splashing her Mother as Goji just petted her daughters head, as she had Just came back from the Center of the earth to feed off it's radiation, since Gojirsaurs use radiation as their main food source.

Junior: Mama have you found any other Gojira at the Center of the earth Yet? 

Goji Just stopped as she looked down sadly, and Junior noticed.

Junior: Mama, I'm sorry I asked...

Goji just pets her head again as she smiles.

Goji: No It's Okay. Mama needs to take A Lava Bath Now.

Junior: Okay Then!

Later...

Goji was Naked at the Base of a Giant Volcano which acted as her Personal Hotsprings except it was A Giant Pool of Lava, and she was relaxing when suddenly interrupted.

???: Ms. Goji?

Goji: Mothra, what is it?

Mothra: I can sense that You haven't found any other Gojira am I correct?

Goji: (Sigh) Yes... I am so very afraid that Junior and I will be the very last of A Very long Lineage... Our Race is put to very much extinction...

Mothra: I can see that there's one possible mate.

Goji Just perks up when she hears that.

Goji: Really? Who is it?

Mothra: It's A Human, but a very special human. My Shobijin had been gathering intel from humans since my connection to them is very important, but they are building a theme park where they are reviving dinosaurs.

Goji: What does this have to do with me unless they are bringing more Gojira back to life?

Mothra: The Truth is they have a Human working under them with A Very special power, which can make Dinosaurs out of thin air Just by having the ones he creates by biting both people and inanimate objects. He is secretly very strong and could be your potential mate.

Goji: Really? Well, I Must find him then.

Mothra: Don't worry my Queen I already sent the Shobijin to try and Look for him.

Goji: You already predicted this didn't you?

Mothra: Hehehe, Call me Extra prepared!

Goji: (Sweatdrop) Uh-Huh...