The continent of Arcadia.

Those who possessed powerful summons ruled armies, toppled cities, and even seized thrones. From that point on, summons became a symbol of power.

However, most common summons were merely beings like spirits or phantom beasts.

Humanoid summons were told of only in legends, and it was known that in ancient times, there existed beings far more powerful than those of the present.

He already possessed everything, but there was one thing he could not obtain.

‘His own perfect summon.’

Kardion already commanded several powerful summons, but he continued to crave a stronger existence.

Eventually, he laid hands on a forbidden ancient summoning ritual and awakened the final seal.

However, what emerged from the summoning circle was neither a magical beast nor a spirit.

Guest.

A humanoid summon that had been sealed since ancient times. An unknown entity whose identity and past remain a mystery.

At first, not a trace of mana could be felt. But he realized instinctively:

‘This is no failure.’

That this being was more dangerous than any summon before it,

and the most perfect existence of all.