In this world, there exist beings not of the mortal realm—we refer to them as "spirits"—and they come in many different shapes and sizes—some large, some small, some have long limbs or necks, and even some with strange marks or runes on them.

With that being said, spirits can also grant one immense strength—be it physical, intellectual, financial, you name it. This can be done by performing a ritual known as a "seal"—which is similar to making a contract. . . Anyways- what will you do here?