Rank: This is the division of powers from the strongest to the weakest. From S-rank to the lowest F-rank.
System: That in an interface that shows the user's stats, points, skills, authority and other private information.
Star: These are godlike beings that watch earth from above. They take in incarnations and sponsor them with gold or unique authorities.
Chosen: These are people who awakened and get the chance to be sponsored by a star. Sometimes the strength of the star influence the rank of the chosen.
Fracture: This a massive crack in the sky where monsters spawn out and wreak havoc on the city. Monsters also have ranks; from S-rank to F-rank.
Dungeon: Unlike fracture, the monsters in this don't exut the dungen and upon clearing the dungeon you can get treasures, points, relics and even increase your rank. Dungeon also possess ranks, the higher the rank the higher the rewards and the higher the difficulty.
Authority: Special powers granted from stars to their incarnation, it is literally a fragment of their power. Stars grant more than one authority to their incarnation if favored.
Clas: This is a necessary career like feature that the system randomly assign an awakened. They are classified between normal, rare, unique and mythical. After reaching a certain threshold, a chosen can be able to obtain a sub class.
Prism: A containment used to keep chosen imprisoned. With a ring around their neck that seals off all their special abilities; typically making them equal to a normal human.