Doctor and His Glamorous Sister-in-Law - Chapter 545 - 548 Why

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.

After getting shot, Lucas, a serial killer, reincarnated into the novel world as a tragic villain with the same name, Lucas Ciffer.

Lucas Ciffer was supposed to be the Holy Kingdom's successor to the throne, but his demonic appearance and the powers he possessed terrified the entire kingdom. A white-haired boy with red eyes and pale skin, together with his dark powers, got persecuted and exiled by his own family. Not to mention that in the future he was destined to die by the hand of the hero.

Lucas fell from holiness, and, with the serial killer's bloodlust and knowledge of the future, he decided to prove the world right.

Yes. I could be a villain; no, in fact, I WILL BE THE VILLAIN.

[WARNING: MATURE ,SMUT ,R18, DEGENERATE CONTENT]“I'm sorry, the Young Master can't meet you right now. He's currently... attending to his stepsister in her chambers.”“No, I'm afraid he's unavailable today. He's helping the knight captain with some... personal training.”“The Young Master? Oh, he's quite busy at the moment, teaching the maid about the... intricacies of noble etiquette.”Excuses... excuses... The servants had become experts at making them.Reincarnated twice and betrayed in every life, Cale Regulus Midgar thought his luck had finally changed when he woke up as the son of a powerful Duke. But his sixth stepmother had other plans—she locked him underground, using his dragon bloodline to breed monsters for a year.Until a corrupt god offered him a second chance.The price? Eternal nightmares that may or may not come true. The reward? The Supreme Intimacy Bloodline System—a cheat that transforms every seduction into power.Through the Lust Bond, women become permanently obsessed with him, unable to find satisfaction with anyone else. Through Bloodline Absorption, he gains their power, their traits, their very essence. The purer they are, the easier they fall.From his stepsister Emma to the knight Ava, from innocent maids to noble ladies—Cale's harem grows with each conquest. But this isn't a story of redemption. This is a story of a villain climbing from slavery to supremacy, using seduction as his weapon and women as his stepping stones.In a world where cultivation is still in its infancy, where continents hold secrets he doesn't yet understand, Cale will seduce his way to absolute power.One woman. One bloodline. One step closer to godhood.What awaits him?AND YOU -A harem system that rewards seduction above all elseMassive harem with distinct, developed charactersVillain protagonist with no moral compassBloodline absorption creating exponential power growthDark fantasy world with cultivation mechanicsNetori (MC stealing wives/women from others)Explicit R18 content woven into the power progressionA protagonist who embraces his nature as a manipulative seducerHigh-stakes intrigue, betrayal, and survivalWelcome to the ascension of a villain.

In 2036, mankind landed on the fluorescent Mars for the first time.

In 2052, the first World Budo Tournament will be held, which is also the world’s highest fighting event, and the world is enthusiastic about it.

Xu Jingming, the world’s top player “Gun Demon”, chose to retire when he was twenty-six years old, with an injury left by the competition…

A turbulent new era has begun!

- Description from novelbuddy