EX rank supporting role’s replay in a prestigious school - Chapter 101: The Demon clan, among the Original clans.

In a world where power defines worth and survival is a privilege earned through strength, Ronan was just another broken soul—bullied, beaten, and forgotten.Until he snapped.[System Activated][You have acquired an S-Class Ability: Starflame][Extreme rage and deep-seated hatred detected][You have obtained the unique skill: Devil’s Covenant]Once a victim, Ronan begins to rise—with a system by his side that grants him power through every action.When he cooks:[Skill Acquired: Home Cook]When he reads:[Skill Acquired: Speed Reading]When he fights:[Skill Acquired: Vital Strike]And these skills?They evolve.[Skill Devil's Covenant has upgraded into Devil's Divine Judgement][Skill Speed Reading has upgraded into Hyper Comprehension][Skill Energy Slash has upgraded into Demonic Slash]Every moment, every breath, every choice brings him closer to power.A hero, or a villain?He stands among them.

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

A classic villainess/heroine tale that puts a new twist on the genre. This Industrial Era fantasy tells the story of Nadia—a secret agent with a dry love life and an unhealthy addiction to visual novels—as she Transmigrates into the body of Vivian Moore, the villainess of the novel, from a family of business CEOs.All the destruction flags were raised, and Vivian was at the end of her rope. Her life was about to take a turn for the worst, but with Nadia behind the wheel, she seized Fate by the hairs of its head and yanked it into a sharp U-turn.No more weakness was allowed! If something wanted to get rid of her, she would stab it to death. If someone wanted to trample over her, she would shoot them into a beehive. And there was no stopping her because she had the strongest weapon a main character can have: the System!

Philip never expected his new life to be so… complicated. When a tragic accident in the modern metropolis of Bortinto abruptly ends his struggle for survival, he wakes up as the scandal-ridden heir of a ducal house in a world where magic and science coexist. Any fantasies of an easy, heroic life vanish the moment he realizes that the estate that he is tasked with managing is drowning in debt, and his reputation has been shredded by rumors involving his predecessor’s broken engagement to the socialite Lady Rosetta—the granddaughter of a prince.Even as he scrambles to rebuild his estate’s fortunes—grappling with contaminated land, mounting debts, and shrewed industrialists—he unearths troubling secrets about the original Philip’s heartbreak and suicide. A dark, hidden force seems intent on wiping him out for an unknown reason. As conspiracies emerge linking Lady Rosetta’s departure to these shadowy machinations, Philip struggles to separate ally from adversary, not knowing why this power in high places is so bent on destroying him.Meanwhile, the realm teeters on the brink of monumental change. Technological and social revolutions collide with century-old magical traditions, and war drums thunder on the distant borders. Armed with his modern knowledge of finance—now fused with the kingdom’s burgeoning industrial innovations—Philip attempts to ride the trends and transform his estate into a beacon of prosperity and secure his heirship to the ducal title. Yet each small triumph only attracts more enemies.Tasked by the System with cultivating a supernatural entity while uncovering the real reason behind Lady Rosetta’s canceled engagement and the original Philip’s tragic end, he must also shield those he grows to care about from the looming threats. Will he harness the synergy of magic, technology, and commerce to steer his estate toward greatness, or will malevolent forces quash his second chance at life? Will his second chance at life end the same tragic way as his first?