Others Control Beasts and I Refine Them, That's Fine, You Know?

Controlling beasts for others: signing contracts, cultivating relationships, increasing bloodline concentration, feeding evolution props, looking for mysterious evolution plans... I control the beasts: grab the God of Extinction thunder, and instantly create a top-quality purgatory thunder lion with full favorability; grab the billion-year-old arctic glacier, and instantly create the ice and snow girl. I can fill it if I want a royal sister or a loli; grab the Xuanshui Bihualu, and instantly create a blue-wave dragon. It's just... You know?