Riches and Bitches: I have a gate to an isekai and leveling-up system! - Chapter 450 Heralds of change

Sulí woke up from chaos without any memories, and without a system on her, simply living through each life cycle indifferently, guided by some mysterious force. Slowly, she realized that in every life, her identity was that of a supporting character with a bad ending...A wife discarded by her husband,The leading student led astray,An ordinary girl taken down by vanity,A childhood friend with toxic tendencies,Romances entangled with embroidered balls,The so-called phoenix men...After countless lifecycles, amassing immense merit and golden radiance, Sulí found out that things were far from being as simple as she thought.

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

She was the Eldest Legitimate Daughter of the General's Mansion, treacherously harmed and died a miserable death. Perhaps moved by pity, heaven granted her rebirth. She returned to four years earlier, not only possessing heterochromia that allowed her to see what others couldn't but also equipped with a portable space. She vowed to make those who hurt her and her mother pay in this life.He was a Prince with a Different Surname from Moli Country, holding military power and commanding awe in all directions. It was said that he had conquered most of Moli Country, and even The Emperor showed him deference. Legend had it he was a bloodthirsty prince who killed without blinking an eye.One day, she encountered a ragged but handsome man on the street, who chased after her, shouting, “My wife, my wife.”The woman said, “Damn it, who is your wife? Aunt isn’t even engaged yet! Go where it’s cool and stay there.”The man responded, “You are my wife, and I've decided to follow you for life.”“A feel-good story, both leads are strong, a pampering love story with 1v1 romance.”

I had been abroad to do medical volunteer work, when I was swept up in a civil war. I was killed by a rebel soldier, while taking a bullet for a patient. But when I finally woke up, I had become a child?!?And in front of me stood a destroyed carriage and a group of oddly dressed people, who were unconscious!“It’s just like a Murim world.”As I hurry to perform first aid in an attempt to save even one person, I realize that this world is that of [The Supreme Demon King], a Wuxia novel I’ve enjoyed reading.After meeting the rescue team of the ‘Three Great Doctors’, I found out that one of the person I saved was the protagonist of this novel, the future Demon King ‘Yeo Haryun’!“Hey, since I’m indebted to you for saving me, call me ‘hyung’.”For saving his life, I become sworn brothers with the future Demon King, and the White Dragon Godly Doctor, one of the most knowledgeable people around, recognized my potential and took me in as his disciple. This is the story of how I became the greatest physician in Gangho!