Ouroboros Record

A new dark hero is born! Brainwashing, modification, human dissection... A boy who manipulates alchemy for immortality cannot be ignored! Tullius, the second son of an earl's family, died in modern-day Japan and was reincarnated as a child in a fantasy world ruled by swords and magic. His only wish is simple: "I never want to die again." Having experienced the terror of death once, he is even more afraid of dying than most. He refuses to accept dying from old age, illness, or being killed by others. Driven by this obsession, he clings to alchemy, a form of magic that is said to grant immortality when perfected. However, alchemy is considered a mere exaggerated myth by the rest of the world. Furthermore, Tullius' alchemy research takes a disturbing turn. Brainwashing, modification, human dissection... His repeated, abnormal experiments make him feared and reviled by those around him, but he doesn't care at all. One day, Tullius receives a strange order from his brother, who should have hated him—what will happen next? (Source: Shufu no Tomo-sha, translated)