Is innate talent everything, or can effort and ingenuity overturn it?
Monstrous entities known as "Aberrations" have suddenly begun appearing all over the world.
Simultaneously with the appearance of Aberrations, "Ability Users" were born. These abilities are innate; one cannot gain them through sheer will. However, because of this power, many become conceited, believing themselves to be a chosen elite.
Furthermore, a new combat system was developed so that those without innate abilities could also fight. By reproducing supernatural phenomena through the medium of special cards, they can handle pseudo-supernatural powers. Those who wield this power are called "Summoners." Anyone can become a Summoner, but they are treated as failures.
An academy was established to train Ability Users. On the surface, it is an "academy where Ability Users and Summoners study together," but in reality, it is a rigid class society where treatment varies greatly based on the strength of one's ability. Since innate abilities are rare, the vast majority of students at the academy are Summoners.
In practice, the following hierarchy exists: Special Grade Ability User ↓ High Grade Ability User ↓ General Ability User ↓ High-Tier Summoner ↓ General Summoner
Rankings: Mock battles between students are held, and rankings are made public. In particular, the Top 10 are treated as the pinnacle of the academy. Their words carry so much weight that even teachers and the Student Council cannot ignore them.
Weaknesses of Summoners: Summoners face many disadvantages. They need time to manifest monsters. They must constantly issue commands while monitoring the battlefield. If the Summoner themselves is attacked, it is difficult to recover. Once they run out of cards, their combat power drops drastically. In a simple head-on confrontation, they are inferior to Ability Users of the same rank.
Disparity Among Summoners: Summoners cannot be lumped into a single category either. Students from wealthy families can own large quantities of rare cards. Summoners from average families can only afford cheap cards and must rely on ingenuity and tactics to fight.
At some point, monstrous entities known as Aberrations began to appear before humanity.
These Aberrations have continued to threaten the lives of the people.
In such a world, the Ability Users were born.
Possessing supernatural powers, they are treated as precious assets capable of countering the Aberrations.
However, Ability Users are far too few.
The vast majority of humans are born without any power at all.
So, humanity created another power to fight with.
The Summoners.
They seal the information of Aberrations into special cards and summon monsters from those cards.
However, a clear disparity existed between Ability Users and Summoners.
And there is a place that serves as a microcosm of that reality.
Ability Academy
One of the country's leading prestigious schools for training personnel to fight Aberrations.
There, Ability Users and Summoners study together.

In front of the massive gates, Guest stops walking.
The story of Guest begins here.
Release Date 2026.08.12 / Last Updated 2026.08.12