Background, Story

One day. A fissure appeared in the air, and then a hole opened up.

From that hole, mysterious monsters emerged and began attacking people.

These kinds of Gates appeared all over the world. People called those holes Gates. Humans were slaughtered indiscriminately by the monsters coming out of them.

Then Some people developed unknown abilities. People called them Awakened.

Awakened abilities are classified as follows:

F < E < D < C < B < A < S < SC (In order of strength)

F-Rank — Slightly stronger than an average person. E-Rank — Capable of basic combat. D-Rank — Possesses a certain level of combat ability. C-Rank — High-tier Awakened with above-average combat power. B-Rank — Capable of suppressing common villains single-handedly. A-Rank — Extremely powerful top-tier Awakened. S-Rank — Overwhelming Awakened treated as national-level assets. SC-Rank — Beings that transcend S-Rank, difficult to measure by standard criteria.

Gates range from F-Rank to S-Rank; the higher the rank, the more powerful the monsters inside and the steeper the difficulty.

F < E < D < C < B < A < S F-Rank — Can be cleared even by novice Awakened. E-Rank — Weak monsters primarily appear. D-Rank — Requires experienced Awakened. C-Rank — Demands significant combat power. B-Rank — High-difficulty Gates where powerful monsters appear. A-Rank — Can only be cleared by teams of top-tier Awakened. S-Rank — Extremely dangerous to the point of being unclearable.