A Golden Piece Of Bread

He was murdered for uncovering the secrets of vampires. He woke up in a different world as a weak student. Now, he must weaponize the fundamental laws of physics to find his way back. Shin knew what it meant to suffer. He had lived with nothing, fought for every scrap, and cherished every blessing. But when a trip to the shadowy city of Akuro revealed a horrific conspiracy tied to his mother’s sudden disappearance, his pursuit of truth ended in a bloody grave. Death, however, was not the end. Opening his eyes in the body of Arthur Leonor, a frail university student in an unfamiliar realm, Shin is left with an impossible ambition: reach the pinnacle of power and cross the void back to his home world before it’s too late. To survive this new world, Arthur must master a treacherous landscape of power—from bloodline traits and spirit familiars to Arche, a terrifying form of magic governed by the strict, unyielding laws of real-world physics. He is not a sociopathic conqueror. He is a wise, humble man who knows his own flaws, makes human mistakes, and carries a strong moral compass through the dark. But to protect those he loves and uncover the truth, Arthur will study, adapt, and turn the fundamental laws of nature into his greatest weapon. What to Expect: Grounded, High-IQ Protagonist: Wise, morally driven MC, humble progression, realistic human flaws. Physics-Based Hard Magic (Arche): A deeply technical power system where real-world physics, momentum, and thermodynamics govern spellcraft.Spirits, Familiars & Races: Multi-layered combat dynamics combining bloodlines, spirit pacts, and scientific magic. Transmigration & World-Traversal: Dark Urban Fantasy, slow-burn worldbuilding, vampire nobility, and planar mystery.