A young man in a black robe, with a beautiful smile on his face, stood before a golden throne. He had long, half-red and half-white hair, a chiseled face, a well-built body brimming with strength, and a piercing golden iris, similar to the blazing sun.

The young man was on a battlefield with thousands of bodies belonging to humans, demons, and magical beasts littered all around.

Thousands of fire spirits circled around him, forming a barrier made up of fire, protecting him from thousands of blazing attacks targeted at him, whether weak or strong, as they barraged the barrier.

Flying above the young man is a black Phoenix with glittering black feathers, releasing Phoenix breath against the attackers of the young man.

The entire world was against him. All the mages, demons, and magical beasts emperors had joined the war against him, all so they could destroy the one they considered the Shameless War God.

"Still, Leo didn't retreat. He didn't run away."

"Is that what all of you are capable of?" Leo laughed as he continued moving towards the golden throne without attacking. "

"What a nice throne, said Leo as he admired the throne."

The throne is golden in color and embedded with three gems. It is believed that whoever the throne accepts as its master will be the new god of this world.

"Stop him; don't let him take the throne away, shouted one of the demon kings attacking him."

"Can he even take it away? Different people have tried to take it forcefully before him, but they are all blasted to smithereens by the throne," asked a newly ascended demon king.

"Haven't you heard about him? He is the shameless war god; there is nothing he can't do," replied the first demon king.

"He is right; there is nothing I, Leo, and the War God can't do, said Leo as he shot a side glance at the two demon kings."

The two demon kings were scared sh*tless by his gaze.

"Rather than War God, the Shameless War God fit you better, replied the Phoenix flying above him."

He ignored his attackers, preparing for something impossible. He was going to make the entire world his enemy! He was going to take away the God throne of the blue planet because it is the best birthday gift he can present to his beloved!

The world... It was never going to be the same again.

...

Five hundred years ago, in the year 2020 of the former calendar on Blue Planet,

For the past few years, the world's weather has become absurd from one day to the next. Natural disasters have become everyday natural occurrences all over the world. Ten percent of the world's population was lost to these disasters. Scientists all over the world tried to look for the causes, but their efforts proved futile.

Later, the people suddenly discovered that forty percent of the world's animals (both domesticated and wild) have become more intelligent, while some have become more feral.

"People suffering from various terminal diseases suddenly recovered."

"These phenomena are the result of mana induction into the earth's atmosphere."

Scientists simply had no way of explaining these phenomena. However, as a consequence of this, different people all over the world who are later called "Mages and Mage Warriors" became stronger and developed different abilities by wielding mana and developing mana cores.

"Not only humans, some of the animals also developed the ability to sense mana and condensed mana cores, and they are later known as "Fierce Beasts and Magical Beasts."

"Fierce beasts are animals that possess little or no intelligence after condensing mana cores, while mana beasts are animals with increased intelligence due to mana condensation."

The people thought mana was a gift of nature to improve people's lives and survive against the attacks of fierce and magical beasts and natural disasters, until the demons invaded.

One morning, people suddenly discovered that their various technological devices, such as smartphones and airplanes, were not working until they discovered cracks in the planet's atmosphere. This brought about a state of emergency all over the world. Different theories were proposed by the people as a result of the cracks; some thought the cracks led to another world, while others thought it's the end of the world. Well, they are right; the cracks lead to another world, and it signifies the end of the world as they know it.

Suddenly, all the various continents on the planet experienced very strong seismic waves for a few hours, after which they discovered that the three continents that make up the planet had joined to form a new continent.

Followed by the union of the continents is the invasion of demons led by the four demon kings from the cracks in the atmosphere, and this led to the deaths of 70 percent of the total world population as a result of modern weapons not being effective on the beasts except nuclear weapons and attacks from mana warriors. As the fight between humanity and demons progressed, magical beasts suddenly joined the fight against the demons and humans. Humans suddenly became sandwiched between demon invasions and magical beast attacks.

"Ten years later, during the war, as the humans were on the verge of despair, a glimmer of hope emerged. With their world being invaded by demons, a band of seven heroes with white cores and a hint of purple emerges from nowhere and gathers together to save their dying world. They are willing to face the odd to save their people from the demon invasion. They led the mages and mage warriors in the fight against humanity's survival."

During the course of the war, to stop the demon invasion, three of the seven heroes used their life forces to cast a forbidden spell, which killed two of the invading four demon kings and sealed the space crack leading to the demon world.

As the forbidden spell was cast, the demons were left without reinforcements. To protect their remaining subordinates, the remaining two demon kings retreated to the northern part of the continent with the surviving demons.

Five years after the demons retreated, the remaining four human heroes were able to force the magical beasts to retreat, and this brought an end to the fifteen-year-long great war between humanity, demons, and magical beasts. This war was later known as the "Apocalypse War" in the history of mankind.

Magical and fierce beasts retreated to the eastern beast forest.

The war brought great casualties to humans.

"The three heroes that cast the forbidden spell lost their lives."

"Many women became widowed and many children became orphaned as a result of this war."

After the war, statues of the seven heroes were erected all over the world to commemorate their achievements during the war. The remaining four heroes, two men and two women, are later called the four True Demigods War Heroes.

The four True Demigods created two sanctuaries and three empires to serve as strongholds for mankind.

The United Academy, a sanctuary created to train new mages and mana warriors of mankind, was created by the joint efforts of the four demigods.

"The Crimson Sanctuary was created and controlled by True Demigod Crimson."

"The Thunder Empire was founded by True Demigod Zeus, a dual mage of thunder and wind who is hailed as the strongest True Demigod alive."

"The True Demigod Heaven Secret went into seclusion after the war with no news about her whereabouts."

"Presently, forty percent of the northern part of the whole continent is occupied and has been converted to demon lands, where the demons live."

"Humans occupied the remaining forty percent of the continent while recovering from the war losses."

"The year the war ended was later known as the first year of the unified calendar used by all the people around the world."