Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 4, Chapter 3: Only towards the little sister, memories of the friend are a topic

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

Question, there is a beauty under the starry sky, her black hair looks like eternal night, her bright eyes shine like stars, her powerful magic power makes the world tremble, and her peerless beauty makes all living beings surrender, who is this beauty?

“That’s right, it’s me, the Witch King, Dorothy”

ps: The real name is “Otaku Witch”, a slow-fire setting text, too watery to enter! Don’t like water! Don’t like water!

- Description from novelbuddy

Living carefree at home is the greatest shortcut—- My house is the world’s greatest magic power spot, that being the case both my house and I were summoned to another world by some guys who were aiming for it. However, I’ve been living in this place for many years and my body is, apparently, abnormally overflowing with magic. Due to some unforeseen circumstances by those guys who summoned me, they quickly ran away. Be that as it may, there are some ill-mannered people who covet the magic leaking out of my house. I won’t give up my house to those people! I’m going to wield my power as I please!

“Sect Master! Marry me!”If only things were that simple.Fang Yuan lets out a long sigh, eyes fixed on the mountain of paperwork threatening to swallow his desk and his soul.As the youngest family head in history, you’d think he’d be enjoying fame, fortune, and fawning admirers.Instead, he’s buried in bureaucracy, stuck mediating elder disputes, and wondering if the sect treasury mysteriously eats spirit stones.Sure, the old geezers have their experience, their beards, and their lofty reputations.But Fang Yuan? He has one thing they don’t: raw, unshakable power.Born into a world where innate talent reigns supreme, Fang Yuan—a transmigrator armed with modern grit—actually managed the impossible: he clawed his way to the top with nothing but relentless hard work.While everyone else coasted on heavenly bloodlines and golden physiques, he trained, he studied, and he schemed.Now, he’s strong enough to bend heaven’s will.But cultivation isn’t all sword beams and glory.Life as a family head comes with its own set of woes—namely, watching his annoyingly handsome junior brother collect all the female attention like some kind of walking romance novel.“This isn’t fair,” Fang Yuan mutters under his breath, stamping another scroll. “I’m the protagonist here... right?”