In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 1:

“Obtaining the topmost degree of talent in sword arts in the world requires giving up 72 years of lifespan, which leaves you with only five more years of your life. At the same time, you will never be able to feel love, kinship, and friendship, and you’ll end up leading a lonely life until your death, unable to procreate, or to have any descendants.

“From now onwards, everything related to happiness in the human world shall no longer be of your concern. Are you willing to accept this?”

“Hahahaha, I’m already alone bereft of all support, my hopes dashed to pieces, shouldering only absolutely irreconcilable grudge and hatred, why would I disagree? Why would I not want it? I couldn’t ask for anything better!!”

His sword sweeps across the Divine Continent for seven days and nights, moving 90,000 miles through the starry skies, unhindered.

He slays saints and buddhas in Heaven, slaughters demons and devils in Hell, sweeping away all the grievances in his heart!

- Description from Novelupdates

Damon’s lips twisted into something between a smirk and a sneer. “Sisters or not, I kept them alive so you could watch me rip off their heads one by one. That’s the only reason they’re still breathing.”My jaw tightened. “You wouldn’t.”He leaned closer, his voice lower. “Wouldn’t I?”“You kept them alive?” I repeated his words slowly, my voice cracking with disbelief. “Just so I can watch you kill them?”Damon stood tall, his eyes twirled with something sinister, his expression was like a carved stone. “Yes,” he said flatly. “You cared enough to protect them. Now you’ll watch as I end them.”My chest tightened. The air grew too thick to breathe. “You’re cruel.”“I’m Alpha,” he replied, his tone cold, without a shred of mercy. “Mercy gets people killed.”‘Psychotic bastard. I wish I could drive a knife into your chest right now!’~~~~~~~~~~~~~~~~~~~~~~~~~~When Ember opened her eyes, she was no longer the powerful, independent woman she once was.Instead, she woke up in the fragile, abused body of a lowly Omega—destined to be nothing but a breeder for the Alphas.Her escape attempt didn’t get her far. Instead, it led her straight into the path of Damon Blackthorn—the ruthless Lycan King feared by all.Sold like a slave by her own father, Ember becomes the property of a man with a frozen heart and a violent temper. But beneath her submissive mask lies something more: a cunning mind and a will that refuses to break.Now, in a world ruled by dominance, power, and ancient bloodlines, Ember must do more than just survive.She must outsmart a king.She must earn the loyalty of the very people who scorn her.And maybe—just maybe—she’ll bring the Alpha to his knees.

What’s not to love about my new life after transmigrating into a Pet-centered world?
There are mighty creatures that come in all shapes and sizes. They can either be cuddly companions, helpers in your daily life, daring scouts or strong fighters. Or all of the above. Not bad, huh?

I have a family, but the fact is completely overshadowed by my younger sister. She thoroughly hates my guts, and she makes sure that I know this. Every. Single. Day.
Did I mention that she’s disgustingly talented while I am a bottom feeder? A terribly handsome one at that.

I have free rein to run the family business on my own. A small and quaint Pet Store. It should have been great if not for the fact that the previous owner of this body was born with ZERO affinity to handle Astral Pets…

It wouldn’t be a proper transmigration without a gimmick or a system to pave my road to greatness, don’t you think? I have one, but I don’t know if I would be better off without it…

“When I left you, it wasn’t because I was materialistic.”

“I know.”

“He doesn’t love me. I already broke up with him.”

“I know.”

“You knew? I didn’t know you were still so concerned about me…”

“I know because he and I are now a couple.”

This is a story about how a poor loser turned into a tall, handsome and rich guy and snatched his ex-girlfriend’s current boyfriend away.

- Description from Novelupdates