Aftermath
Commander Eili and the rest of the soldiers turned pale when they saw the enormous Nine-Headed Hydra. A powerful fifth stage monster from legends. Just a fourth stage could already give them a helpless feeling and now... A FIFTH STAGE HAD APPEARED!!!
Feeling the high intensity coming from that monster made their knees collapse. Their strong will was slowly crumbling. With the power of Nine-Headed Hydra, their numbers were useless in front of it. At the very least, to confront a fifth stage monster they should be at the level where they broke the first great shackle of a mortal's body, the fourth shackle.
Four Shackles Realm.
That level of power was the minimum requirement to become a Grain Leader in Athen's Champion. In Giza's terms, it is the starting point of SSS-rank.
In this rank, the fourth, fifth, and sixth shackles belong to this level. The Adventurer's Guild grouped these three shackles as SSS-rank.