Year 4476, Moscow, Russia
The world is in ruins.
2400 years ago, the sky shattered and became crimson. The first acurrance of Monsters happened, portals to other dimensions started forming, later on, humans called them dungeons, if not cleared for too long, a dungeon break would occur, in which the monsters would leave the portal and wreck havoc.
In the first months more than half of all humanity has died. Only the countries with huge military force had survived, the small and poor countries had been wiped out of existence in the blink of an eye.
Most of such countries became Monster Cities. Some of the higher ranking monsters had high intelligence, and led those cities.
Half a year passed after the first occurrence of monsters.
Humans discovered magic. After experimenting with different animals, people were able to create pet monsters. Not long after, humans started implementing beast cores into themselves.
Beast cores are magical stones, which are formed due to mana compression. A beast core means a monster is able to absorb and store mana, which, humans are not able to do, well at least that was the case.
5 years after the first occurrence of monsters.
Only the major countries are left. 3/4 of humanity has died. Stronger monsters appeared, the monster ranking system has been invented.
White-Yellow-Orange-Red-Black-Inmeasuarable
Due to the breeding of Beast-Core injected humans, humans with inborn magical talent have began to appear.
Short after, the world had stabilized. Humans were finally able to hold their own against the monsters. The Hunters Association, ruled by high-ranking government officials, had been formed. Hunters with different traits appeared, 4 official classes were formed, Mage, Knight, Archer, Production. Each of these classes had unique talents and skills.
10 years after the first occurrence of monsters.
Injecting beast cores has been labeled as illegal, due to the hardness of control over the unfitting core. Beast cores had been renamed to Mana crystals, and all humans started to form Mana crystals. The ranking of humans had been created, F, E, D, C, B, A, S, Legend, Hero, Mythic, Demi-God.
'He' appeared. The most talented mage of all time, Su Jong. From his early childhood on he could use high-ranking magic. He was an orphan with no parents. Awakened at the age of 5, and reached the Mythic rank at the age of 6.
Even tough a mages lifespan exceeds 200years, not everyone could reach the A rank. He already was at the level of a Supreme leader, at the age of 6...
You may ask... why? Because he is a fucking op MC? Yes he is. As well as a transmigrator. Su Jong, Immortal-transcendal being, at the Supreme-Imperior Realm. Had been sealed and killed by the teamwork of 600 Gods.
In the last second, he used his power to reincarnate in another dimensional-timeline. Which sent his spirit into the body of a young boy. The magic he used wasn't common. It was cultivation. Meaning he replaced Mana with Ki, forming not a mana crystal, but a dantian.
That was how this hungry for power immortal cultivator, had to restart from the bottom, and take revenge on the gods that killed him, causing him to lose his lifetime long progress, of 154years. (And yes, he is fucking op. This chapter was mostly just an introduction to how the world developed and how it works.)