MTL - I Have a Store In the World of American Comics - ~ One thousand four hundred and forty-three

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.

The teenager Long Ao, ten years of silence, was reduced from genius to waste, and was ridiculed and mocked.

Ten years of persistence, ten thousand failures, and finally won mysterious Dragon Seal.

With Primal Chaos Saint Body, cultivation invincible cultivation technique, refining Heaven and Earth, devouring endless stars, sweeping the wasteland! Ask the vast stars, who dares to fight me? Boundless Starry Sky, War God! …

- Description from Uukanshu

“Uncle Morgan... it's you!” Chloe Leung initially wanted to flirt with her crush but ended up flirting with the poker-faced uncle who had raised her for ten years, leaving her dumbfounded. Her first reaction... run!Helplessly, she could escape the monk, but not the temple, and she was caught before even leaving the house, “Did you think you could run after doing something bad?”Chloe Leung cried with a mournful face, “Then... what do you want to do?”The man smiled meaningfully, “Let's see how you behave!”

Yeri was once a succubus, a powerful and irresistible seductress who fed on desire. Now reborn as a stunning young woman in the modern world, she must navigate the confusing collision of her human innocence and her demonic memories.One night, fate leads her into the path of Shin Keir, a dangerously magnetic and notorious CEO known for getting everything he wants—except peace. Their accidental encounter sparks an intense, uncontrollable passion, and a single night together changes everything.***Excerpt:The dream had returned.Same eerie forest. Same surreal woman in the crimson dress. But this time, the setting had changed slightly. She now stood at the edge of a cliff made of jagged, glowing red rocks that resembled oversized rubies.Scarlet butterflies floated around her like living embers.A thick fog blanketed the area like some forbidden realm between worlds.She turned to him, her smile soft, sweet—and somehow tragic.She was heartbreakingly beautiful, ethereal yet forlorn, like a love story written in fading ink.Shin had tried to call out, but the wind swallowed his voice. As he stepped forward, the woman mouthed something. He couldn't hear her.Then, in a horrifying instant, her body tilted, and she plummeted off the cliff.The despair that followed wasn't just a feeling—it was a full-body, soul-tearing scream that never made it past his throat.Without hesitation, Shin leapt after her.He awoke convulsing, drenched in cold sweat. His eyes gleamed with a strange madness, a devil struggling behind the polished CEO exterior.***Disclaimer- Places and characters are all works of fiction.