Kyoukai Senjou no Horizon - Volume 8B, Chapter 45: Debaters in the Forest

Lady Dawn expected to die.After casting her soul to the wind, taking a one-in-a-million chance to escape the wretched dungeons of Taegrin Caelum, the once-caged songbird of the Asclepius wishes nothing more than to find her Hearth and warn them of the coming danger. Instead, she’s found herself a shade, anchored to a young man who knows far too much—and with far less hope than she’d started with.Toren Daen, for his part, only wanted to make it home safely. Now he’s in a world taken straight from the page, questioning what is real and what is fiction, and scrambling to make something worthwhile. And with his foresight, there’s only one way that Toren can see to keep this new world safe: prevent the descent of the Legacy. But those in power will not make it easy: Nico Sever is in a league of power all on his own, and Arthur Leywin bears the burden of Fate a continent away. In this familiar-yet-not world of mana, monsters, and looming deities, any misstep along the roads of Alacrya and the High Sovereign’s Dominion could lead to a Fate worse than death.But what is death to a phoenix? With a burning secret in his mana core, knowledge of the future, and a maelstrom of fears and questions, Toren might just survive to be more than what Lady Dawn expected him to be. He might just survive to waylay the encroaching tide of death in the proxy war between raging asura clans.More than all of that, he might just live.

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

The doomsday fell upon the earth when a dragon coffin sealed under a snow mountain for ages shifted, and the civilization of gods and devils began. The whole universe turned into a fantastic new world where everyone could rise to the top through cultivation. A lucky young boy seized the opportunity, and started his journey to be an overlord in cultivation.

- Description from Novelupdates

In the grand world of Nova, many different races exist such as elves, humans, dwarves and beastmen and through years of war, strife and competition the world has grown, becoming home to great empires and countries throughout the oceans and five continents. However, to the great creators the world has become stagnant and boring, ever since the calamity that was the Church of Light and their Holy White empire.

Now the Dark God has created a new race after years upon years of dedicated effort. A species that is like none other and his hope for Nova’s future….Dungeon cores, beings that have the ability to reshape the very world itself, entering the domain of the gods.

Join Frost a newly born first generation Dungeon core as he embarks upon his journey within Nova and carves out his place in the world. How will the world’s current denizens react to his birth? Will they be friends or foes? And most of all how the Light God react to this new addition to the world, will he accept them or seek to destroy them?

This novel incorporates dungeon building and management but most of that won’t fully take off until the later volumes when Frost has much more floors and money to play around with. This is not a solely dungeon story as the MC Frost will have to explore and interact with the world of Nova much like how an adventurer would and forewarning the story is slow. There’s a lot of details and avenues which the story goes into, not simply battles, wars and action, it follows all aspects of Frost’s life, his growth and interactions with Nova not only as a Dungeon core but also as a person.