Refining the Mountains and Rivers - Chapter 7 – Poison Core and Golden Core

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

In his previous life, An Ji seemed to have the word “unlucky” written on his forehead.

He was born into nobility, but ended up living on the streets for ten years. He found a beta boyfriend, but the scumbag tricked him into cutting out his glands. He dedicated his life to the omega cause, but ended up dying without an intact corpse.

It wasn’t until later that he found out that everyone described people like him as “beautiful, strong, and tragic.” The difference was that the beautiful, strong, and tragic characters in stories all have happy endings, but he only got death.

An Ji: “WTF.”

Then he is reborn.

In this second life, An Ji expresses that he will only be beautiful and strong. As for tragic? f*ck that shit!

But can someone tell him why his previously polite fiancé suddenly changed personalities?

Star history states that Emperor Rongwu had a brutal nature and outstanding ability. He ruled with an iron fist and created a prosperous world that lasted for hundreds of years after the war.

Everyone thought that he was too focused on his career to spare any attention for love. Very few people knew that he was always thinking about his fiancée, the true love that he let get away because of his ridiculous notions of kindness.

The great, unmarried emperor ended his long and lonely life after choosing a successor for the throne.

When he opens his eyes again, Li Rong has returned to his youth.

The young puppy Li Rong believes that if you love someone, you must give that person freedom.

The old dog Li Rong says that is all nonsense. If you love someone, you must possess that person at all costs.

Much later on, An Ji rubs his sore waist and thinks that his new life is still tragic to some extent.

The young puppy and the old dog come in turns. Even the strongest omega wouldn’t be able to stand it… ORZ

- Description from Novelupdates

After an unexpected death, a soul finds itself reincarnated into the body of Itsuka Shido, an ordinary teenager in a world filled with powerful spirits, magic, and dangers from other dimensions. With the help of a mysterious system integrated into his body, Shido gains the ability to travel across worlds, summon legendary anime characters, and unlock a wide array of random skills and abilities.Disclaimer: The cover isn't mine, credits to the original artist.