Eternal Regret

[Decisive! Invincible! No Mercy!]
When a thunderbolt ripped through the night sky, the blood moon appeared, and the world changed forever. Animals evolved, vegetation grew wildly, and intelligence was awakened.
In just one night, the world was plunged into bloody chaos. The helpless humans were unable to resist the onslaught of the evolved animals and the sweeping plants with awakened intelligence, making countless humans their prey.
However, those with divine runes engraved on their bodies were shocked to find that their runes had also been revived, which gave them incredibly powerful strength.
Three years after the world changed, Gu Changqing transmigrated back to the eve of the cataclysm.
In his previous life, he did not like to engrave anything on his body, but now that he had come back to this chaotic world, the first thing he did to survive and rise up was to invite the world's top divine rune master to engrave the ten evil demons in the world: Rahu, Kirin, White Tiger, Black Dragon, Grim Reaper, Asura, Hades, Skeleton, Great Sage, and Nezha!
He knew that engraving divine runes after the cataclysm would not awaken their power and make them powerful.

Divine Rune Awakening: Starting With Various Divine Runes and Dominating the World

Clouds and mist shrouded the area, and the mountain range was majestic and wide. Ever since Blue Star was unsealed, Mount Kunlun had changed. It occupied a much larger area.

The fog that hid the sun and covered the sky made it so that only the mountain's outline could be seen.

Through the clouds, a black dragon that was tens of thousands of feet in size could be vaguely seen circling above it.

Not long after, a wormhole portal slowly appeared in the sky above Mount Kunlun.

Gu Changqing, who was wearing the Abyssal Emperor Dragon armor, walked out. When he saw that there was really a black dragon with an aura of around tier 50, a hint of surprise flashed across his eyes.

When he arrived, the black dragon seemed to have sensed him. It poked its huge head out of the clouds.

The dragon's deep blue eyes observed him quietly. A moment later, something unexpected happened.

Black Dragon Follows! Golden Door