A Breeder? My Hidden Trait Is Infinite Reproduction

(Crossbreeding among multiple races + offspring repaying their parent + invincible protagonist + subduing all races)

Reborn with the supposedly most useless class, Breeder, I am mocked throughout the city as a joke from a breeding station.

But my hidden trait, [Boundless Reproduction], defies all logic: it ignores reproductive barriers between species, and reproduction makes me stronger!

With nowhere else to turn from the start, I grit my teeth and pounce on a wild queen ant...

In a single night, eight hundred ant warriors are born, and their boosted attributes flow back to me!

From then on, I embark on an unorthodox path to godhood...

When the world-ending tide of beasts arrives, an army of billions of hybrid offspring stands behind me.

The gods and demons of the heavens tremble and bow their heads: "Please... please stop breeding!"

And I sit on my divine throne, surrounded by the mothers of all races, and smile faintly. "What's the rush? There's barely enough here to open a kindergarten."