The Time a God of Destruction was reincarnated as a slime.

It was a dimension as big as the Eastern Empire, vast and empty, with no life inhabiting it yet. With Beerus's orders, Athena began shaping the foundation of his new country. She molded the land to include lush fields, rivers, lakes, a celestial sun, and a glowing moon. The dimension would experience day and night cycles, but with time moving faster compared to the cardinal world. To sustain life in this artificial paradise, Beerus released an enormous amount of magicules infused with a touch of stardust, creating an environment where the future inhabitants would thrive.Beerus then commanded his two loyal subordinates, Erza and Zerna, to bring diverse groups of creatures from the cardinal world into the dimension. They sought out demons from their own lineages, ventured into forests to recruit various monsters, and gathered animals that would contribute to the ecosystem. Among their recruits were goblins, ogres, lizardmen, halflings, kobolds, lycanthropes, orcs, elves, blade tigers, knight spiders, lesser dragons, and wyverns. They even traveled to different countries to find individuals interested in joining this new land. Many accepted the invitation, while others declined, but eventually, the two gathered dwarves, giants, humans, and representatives from nearly every race.Each tribe was allowed to settle in areas that mirrored their natural habitats, but this was only the beginning. Beerus envisioned a modernized country, far beyond anything seen in the cardinal world. The dwarves, renowned for their craftsmanship, became pivotal in the construction of this vision. Some monsters were dedicated to military strength, while others became builders, chefs, and artisans. Animals were bred for hunting and sustenance, while the elves helped cultivate fruit and crops.

Using Athena's skill All Creation, Beerus personally designed detailed blueprints for the country's infrastructure. He provided the dwarves with advanced plans to build homes, fortresses, workshops, and entertainment hubs. The result was a harmonious blend of modernized architecture and natural beauty.One day, Velzard, curious about Beerus's plans, asked him what he would name his new kingdom. Her question caught Beerus off guard—he had not yet considered a name. After a moment of contemplation, he declared, "Celesterra." The name, meaning "floating island in the sky," captured the ethereal and majestic nature of his creation. The announcement was met with widespread celebration. Zerna spread the word, and the citizens of the dimension rejoiced at the birth of their kingdom.Years of Growth

Years passed, and Celesterra flourished. What began with a few hundred inhabitants grew into a thriving population nearing a million. The kingdom was paradise-like, boasting advanced technology and an unparalleled quality of life. With a strong military backbone, Beerus ensured that the minimum power level of any citizen was at least a B rank.

The military was equipped with futuristic ships, tanks, and weaponry, all powered by magic. Crime and poverty were nonexistent, as strict laws and a hierarchical system under Beerus's rule ensured peace and order. Celesterra became a utopia of strength, beauty, and unity.Outside World Developments

While Celesterra prospered in its hidden dimension, the outside world saw significant changes. New demon lords rose, such as Kazarem, who was later replaced by Leon Cromwell, and others like Clayman, Carrion, and Frey. Beerus refrained from attending Walpurgis meetings, although he remained fully informed about the world's events through his network of spies.

One major event shook the cardinal world: the Tenma War. Rudra, the Emperor of the Eastern Empire, used his skill to summon millions of angels to destroy highly developed kingdoms, ensuring his empire's dominance. Beerus, angered by this senseless destruction, sent a small force of his soldiers to aid the afflicted nations. However, he vowed to make Rudra and the Eastern Empire pay for their arrogance.The Plan for Retribution

One evening, while relaxing in his mansion, Beerus lay on his sofa with Zerna feeding him grapes and Velzard seated nearby. Velzard turned to him and asked, "So, Beerus, when will you reveal Celesterra to the world? From what I've seen, it's more than ready. The world will be shocked."

Beerus smirked. "You're right, Velzard. It's about time. But before that, I'll teach Rudra a lesson he won't forget. Destroying countless kingdoms to secure his dominance? That arrogance deserves punishment."Zerna, eager as ever, jumped in. "My Lord, shall I go and dispose of that insect?"

Beerus chuckled. "No, Zerna. I have a better idea. Just as he unleashed his angels on the world, I'll send demons to the Eastern Empire. But this time, it'll be a precise strike—military-only targets. No civilian casualties."

Velzard watched with a smile, marveling at Beerus's creativity and power. "You really are something else," she muttered, almost feeling sorry for Rudra.

Beerus instructed Zerna to gather millions of demons from the underworld and prepare for an all-out assault. He had spies monitoring the Eastern Empire, waiting for the right moment when their defenses were down. Rudra, still recovering from the toll of summoning angels, was vulnerable, and the Empire had grown complacent.Shock and Destroy

The night arrived. Beerus sat in his mansion with Velzard beside him and a large screen displaying the Eastern Empire. He even prepared popcorn, treating the attack like entertainment. With a snap of his fingers, hundreds of portals opened across the Empire, catching everyone off guard.

Demons of all lineages poured through, led by the remaining Primordial Demons. Diablo, Testarossa, Ultima, and Carrera relished the opportunity to unleash their power. Military bases, fortresses, and strategic hubs were destroyed with unparalleled efficiency. The demons followed Beerus's orders to the letter, sparing civilians and focusing solely on military targets.Rudra, weakened and unprepared, could do nothing as his empire crumbled. Velgrynd tried to defend the Empire but was overwhelmed by the sheer scale of the attack.

Aftermath

By dawn, the Eastern Empire lay in ruins. Beerus had delivered a decisive message: power must be wielded responsibly, or there will be consequences. Velzard, watching the destruction, couldn't help but admire Beerus's calculated ruthlessness.As the portals closed and the demons returned, Beerus smirked. "That should do. Let's see if Rudra learns his lesson."

With the Eastern Empire humbled, Beerus turned his attention to unveiling Celesterra to the world. "The time has come," he declared. "Let's show the world what true strength and unity look like."