I Can Accumulate Proficiency, Starting from Alchemy - Chapter 466 - 243: Heavenly Demon Array, Gathering of Great Power

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!

A boy encounters him, and knows for the first time that the world beneath the Heavens is a fickle place. Not even demons, devils, ghosts and monsters can match the frivolity of human nature!

A slender physique, and jade-like beauty, but the sword that strikes between heaven and earth is not unlike a streaming rainbow!

The vastness of the starry sky, the seven emotions and six desires! Greed, anger and ignorance! The teachings of Buddha will grant you boundless strength!

A sea of blood will come, at the cost of all mortal beings full of honest hope!

The ghosts wail as the gods roar, but the sea of blood has no end!

Where, pray tell, is the path I should take?

Since there is no path, no matter how bitter and bloody the sea, even if my boat is made out of bones, I will soar to the heavens above!

- Description from Novelupdates

Failing in his job hunting, Sanada Kyouichirou was hopeless in this society. When kyouichirou had thrown himself towards the bottom of a cliff. When he woke up his body had returned towards when he was in fifth grade of elementary school. He did not want to have any regrets in this life so he had decided on building up an harem in this second life.

The elder sister that he admired, a senior and president of the student council at a school for rich young girls, a strong minded upper classman at school. The poison fang of Kyouichirou who had pretended to be a innocent child attacks those girls.

Teotihuacan, a sacred place of worship. In the vast world, feel the quaint and desolate ancient city, and the eagle cries and the leopard roars are chasing away.

Go back to Central America 700 years ago, when the Aztecs were very prosperous.

The priests stood at the top of the pyramid of the sun. One hundred thousand warriors covered the entire wilderness. fluttering. The high priest held his hands high, and the obsidian dagger gleamed in the sun, drawing a cruel and gorgeous arc, bringing the cycle of life back to the earth. Tens of thousands of cheers sounded, with the reverence of the ignorant era.

This was a gift dedicated to the sun god, in return for the sacrifice of the gods in creating the world.

Solemn sacrifices from sunrise to sunset, all-night revelry ignited the whole night, and so on for a hundred years, until white-skinned terrors came from the east coast, bringing blood, thunder, monsters, and disease.

Doomsday, as legend has it, or the end of the Fifth Era?

How can a traveler, in this fierce era, inherit the legacy of two thousand years of ancient Mesoamerican civilization, resist the invasion of Western colonizers with an immortal soul, and lead the ancient Aztec civilization to a new path ~~

- Description from novelbuddy

The former Immortal Ascension Realm Cultivator Wang Che failed to overcome the Heavenly Tribulation, and as a result, his soul transmigrated to a world of the Martial Soul where soul beasts and humans lived together peacefully.