Villain Summoning in an Eroge

Even though it is an Eroge world, their won't be any stats or levels but magic cultivation.

Rank 1 Sphere

Rank 2 Jewel

Rank 3 Crystal

Rank 4 Core

Rank 5 Gem

Rank 6 Treasured House

Rank 7 Mystic Range

Rank 8 Mythic Continent

Rank 9 Legendary Continent

I will explain the cultivation in future chapters, but these are the ranks of mortal plane.

There are three plane known to the world.

Infernal Plane

Mortal Plane

Holy Plane