Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 16 - 16-20. Sania Kingdom

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates

The narrative follows a gamer who, after selecting the “Awakened Cinder” class in the game Fractured Dawn, finds himself transported into the game's world. However, this version of the game is devoid of its usual interfaces—no UI, no tutorials, and no second chances. Each death strips away a part of his memories and identity, immersing him deeper into a perilous reality.The protagonist, now known as Riven, must navigate the treacherous Witherlands, confronting formidable foes like the Gravemare and Dreamborn Horrors, while uncovering the mysteries of Emberlight, Grace, and Cindershrines. His journey is one of survival, self-discovery, and challenging the very fabric of this fractured world.

A turn over of the geocentric Yanlong living in the core of the earth.

It completely destroyed the human scientific and technological civilization that had been developed for thousands of years.

With the return of extraordinary power, the emergence of extraordinary creatures, the fusion of multi-dimensional planes.

Human civilization has entered the era of beast-fighting.

At the core of the earth star, the terrifying head of the earth core Yanlong sticks out.

Above the floating clouds, the Wuhai Phoenix Bird revealed its slender and gorgeous tail feathers.

At the bottom of the Dead Sea, the Vast Sea Dragon Whale swings the body of Pang Ruo Land.

At the end of the earth, the devil wolf chases the blazing sun that never goes out.

Ordinary people who were born in the old era and grew up in the new era were reborn ten years ago.

Unpredictable and able to see through the potential of the beasts, he started a road to collect the beasts of the gods.

All stories have to start from that late autumn ten years ago.

- Description from novelbuddy