On this world, there are all kinds of monsters: golems, dragons, anticos, goblins, and dozens of other monsters from various categories and power levels. F is the weakest rank, and Rank S is the strongest. However, there is one more rank that surpasses all other ranking systems. When someone reaches this rank, they can influence the fate of reality and break the laws of the universe. The entire story began in the year 680 AD, and today we are in the year 839 AD. This means that in the last 159 years, no being has managed to reach Rank SS. But in the future, all of that will change. The main character, Rengouji, will be the first human to achieve Rank SS. You will learn all of this soon, as you read the following chapter.
Our main character, Rengouji, is on the world's most dangerous island, the Monster Island, also known as the "Island of Blood." This island is home to all kinds of monsters that exist in the world, a result of the actions of a god who sacrificed himself in 692 BC to awaken the abilities of humanity. However, because the island houses monsters from all races, there is no leader who can control them. Because of this, monsters often leave the island and wander to the other side of the world, where they kill humans, growing stronger with every life they take.
But let's return to our main character, Rengouji. He has lived his whole life on this monster island. His parents built a house there and killed weak monsters to survive. The island is divided into three zones:
Zone 1, the weakest, is called the "Safe Zone." This is where monsters of ranks F and E are found. These monsters can't cause much harm.
Zone 2, the "Bloody Zone," is much more dangerous compared to the first zone. Monsters with ranks C, B, and A reside here. Anyone who ventures into this zone alone should not expect to return alive.
Zone 3, the "Dead Zone," is the most dangerous. Only S-Rank monsters live here, capable of wiping out entire cities. However, not all S-Rank monsters are on the Monster Island. There are also S-Rank monsters that are highly intelligent and have infiltrated human society on the other side of the world. They disguise themselves as humans and bring disaster to the world.
Now, let's finally talk about our main character, Rengouji. Ever since he could walk, his father trained him in combat. His father was very strict with the training because he wanted his son to be strong enough to survive on his own, without relying on others. Rengouji thought his parents would stay with him for the rest of their lives, but one day, something happened that would change his entire life.