The Fruit of Infinity

Fruit of Infinity follows two rich, sassy, and obnoxious girls. They look down on everyone, in their own distinct ways. And are as cruel as f**k. From literally stepping on servants, to lighting them with fireworks, for the laughs.
To make things worse, they stumbled upon true power: a dateless Entity called Infinity, that'd existed since forever.
This Entity gave them his power and said. "Make your world interesting for me... I'll be watching."
These cruel, pompous ladies attained a position, setting them among the pinnacles of power in the entire universe. Now that they have this power; the world's gods, warlords, devils, and angels have never been so looked down upon.
Their goal, now, is to destroy 15% of the world, in order to spare 85%.
The earth literally exists on their whim.