Superstar From Age 0 - Chapter 510:

I was the one who boosted your rank. Yet you stabbed me in the back? Fine. Goodbye. I’m taking it back. You’re finished now. Thanks to you, I now have an abundance of skill points for a prosperous hunter life. But… after spending some of those points, the S-Rank is starting to get obsessed with me…?

The newly published “Rebirth of the Noble Lady: The Wife in Marquess House” tells the story of her past life where her mother remarried, and she became a common cabbage. While her sister got meat, she was left with soup; her sister got noodles, she had to make do with water; her sister was the princess, and she was labeled as trash. She was trapped in a life fully planned by that mother-daughter pair for her; her family, her husband, all reduced to a miserable joke.Then a car accident turned her into a bloody mess. She told him, ‘my money all goes to my father, my kidney to you, because you are a good man.’At the age of thirty-three, she died in a car accident, leaving her kidney to a good man.At three, she was reborn. In this life, faced with manipulation, she fought back. What sister? She didn’t even have a biological mother, where would she get a sister from? And in this life, she didn’t know if she would once again encounter that good man…

“Kill them all - every last member of House Grim must die tonight!”That was the last thing Renard heard before his world turned to ash. One night was all it took for him to lose everything - his family slaughtered, his home burned to ashes, all because the other Great Houses branded them traitors.They thought they wiped a noble line. Instead, they created a monster.Rising from the despair of losing everything, Renard became the beast Sovereign. He embraced the darkness and rose to the position of the 7th commander of the dreaded demon army.Leading an army of Demons and monsters, he brought three legendary Heroes to their knees and crushed four Great Houses to dust. But just as revenge was within his grasp, the champion of Humanity - Klean Weaver's holy sword pierced his heart.Renard thought that was the end.But something impossible happened.He woke up in the past, in a time when his family still lived and House Grim stood strong among the Eight Great HousesA second chance!A chance to change everything.That wasn’t all.For unknown reasons, he inherited the Legacy of the Devourer, a power that lets him consume the strength of his enemies.Was it a curse? Or a blessing? He didn’t know. But for Renard, it is simply a tool to protect what's his.The Lords of the Great Houses think they're untouchable in their high castles. They have no idea what's coming.This time, the Beast of House Grim hunts first!!

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.