I Accidentally Entered the Tiger's Den, but I Ended up in the Tiger's Den.

In the northern border for hundreds of years, the frozen soil has been a prison. This extremely cold wasteland has been under the control of Gu Shutai for hundreds of years, and has been shackled by soul locking and domestication, fighting in the arena, and human body modification. Countless creatures have been reduced to fighting supplies, trapped in a dark chess game for generations, unable to survive or die. Zhang Huaiyi is a rebellious person who crawled back to the human world from the fighting arena at the bottom of purgatory. He broke free from the shackles of nerves carved into his bone marrow, tore apart the fateful slavery program, and with his body covered in blood debt and endless grievances, ignited the only spark in the desperate camp. From gathering stray survivors and marshalling armies to guard the border, to overcoming standard special operations regiments and fighting high-level modified bodies in bloody battles; from exploring dusty ancient corridors and awakening the century-old gatekeepers, to breaking through layers of dark barriers and slaying the ultimate guard regiment. He went on the Northern Expedition alone, one step at a time, covering hundreds of miles of frozen soil, breaking through centuries-old barriers. The darkness in the north has been entrenched for hundreds of years, using evil to control chaos and blood to maintain stability, establishing an extremely cold order that no one can break. But people's hearts are full of hope, which will eventually overcome the extreme cold of the ages. When the bloody rebels approach the high platform of Gushu, the origin of centuries of darkness finally collides with a glimmer of light in the world. The old order collapsed and all the shackles returned to dust. A century of extreme cold has come to an end, and thousands of miles of frozen soil finally welcomes the light of day. From now on, there will be no more slavery in the North, all living beings will be free, and the dawn will last forever.