MTL - Studying Science in the Alternate World - Chapter 2 guns and mobile phones

He transmigrated into the dangerous world of Naruto and became a member of the Uchiha clan in Konoha.Fortunately, the night of the clan’s massacre is still years away—and he possesses an extraordinary talent, unrivaled in the village!

She was the eldest daughter of a famous doctor in Beijing. She was the “Cold Hell King” who was feared by everyone in Beijing. In her previous life, she was used by a scumbag man. She caused him, his family to be ruined, and he died in the basement. In her second life, she stepped on a scumbag man, a scumbag woman, and her three brothers pampered her to the heavens! The three young masters of the Jiang family were scrambling to be the first to do so. “Shui Su is my younger sister, I'll pamper her!” A certain young master Fu in Beijing coldly raised the chin of the woman in his arms with jealousy. “Tell me, who are you?” Ye Shui Su’s eyes rippled slightly. “Linnan, I'm your person.” How could he not believe such provocative words? Fu Linnan’s icy hand moved to the woman’s slender waist. “You can’t just say whether you’re one of my people or not.” [Rebirth + Counterattack + Team Pet + socketed + 1v1 + Female Lead Snatch] [Reborn + Counterattack + Team Pet + 1v1 + Female Lead Snatch]

Once upon a time, a hero had been summoned to a different world in order to defeat the demon king. After the war stretching 3 years ended the commendable hero slew the demon king. And he was forcibly deported back to earth after being dismissed.

Such bullshit!

Elves in addition to beast race, dwarfs and demon race. Even though I wanted to make a harem in the different world I saved! My dream will not come true on earth, where there is no magic at all. Thus, the hero returns on his own. Without the blunder of being extradited to earth this time, he will build a harem of his own in a different world.

Abandoned at birth in a humble stable, Shirone was raised by commoners—but he was anything but ordinary. Blessed with remarkable insight, he taught himself to read at a young age. A fateful visit to the city introduced him to the wonders of magic, igniting an unshakable dream of becoming a mage. Yet, beneath the city's dazzling facade lurked a ruthless social hierarchy, where power and privilege crushed those who dared to rise above their station. As Shirone uncovers the world's darkest secrets before even coming of age, one question remains—can he defy fate and claim his destiny as a mage in a world determined to keep him down?