Re:Zero Kara Hajimeru Isekai Seikatsu - Arc 6 – Chapter 25, “The Man Who Waits on the 2nd Floor Electra”

In a world where Taming Beasts determine strength and destiny, Leonhardt Valtara is reborn as the heir of the most feared villainous family in history. The Valtaras are ruthless, powerful, and utterly devoted to their own—especially to Leonhardt, their beloved son.But his greatest surprise?He is married to Celestia Nightshade—the Number One Villain, a peerless beauty, and the most genius Taming Beast Master of her generation. Feared by the world, Celestia wields unmatched power, yet behind closed doors, she is the most doting wife, willing to burn kingdoms if it means protecting Leonhardt.However, fate has already written his downfall.The original protagonist, Rael Ascarion, a rising hero, is destined to gather allies, defeat the villains, and restore “justice.” By his side is Evelyn Astralis, the heroine meant to love him. According to the original story, Leonhardt and Celestia are fated to lose.But why should he follow a script that leads to his destruction?With his reincarnated knowledge, Celestia’s overwhelming power, and his first beast, Ironhorn, the Indomitable Rhino, Leonhardt will crush fate itself and carve his own path.If the world wants him to be a villain…Then he will become the greatest villain of all time.

A world only I know of, now I will take it all for myself.There’s no kind soul here willing to share and eat nicely with others.Only the ruthless one who will devour it all alone exists here.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

What is the most painful thing in life? What is the happiest thing in life?

The most painful thing was that after untold hardships, for that small glory at the end but was returned back to the starting point in just one night.

The happiest thing was that after returning back to the starting point, without doing anything, was able to become overpowered overnight.

Zhou Jian in just one day, experienced his life most painful and happiest thing.

The most painful thing was his painstakingly raised professional Thief game account in the online world was “lost” by the system.

The happiest thing was the reason behind his game account loss. The Thief from his game account had appeared in the real world. And become a controllable God of Thieves.

In short, this is a relaxing YY (tl: Chinese slang for light perversion) story, full of plots where playing the pig to eat the tiger. The protagonist is a very righteous young man. Occasionally, he will be wicked but also because he was forced by the author….

- Description from Novelupdates