The greatest alchemist of the Etatron Empire - Buel Osei Divan Preses - was accidentally caught in the space gap by the broken ancient magic circle while exploring the ruins of the new star field, and his body was completely destroyed. After countless years of wandering in the void, when his soul was about to be extinguished, Buel was unexpectedly summoned to a strange plane by the blood sacrifice magic circle. Buel took the opportunity to use the Philosopher's Stone to reshape his body, only to discover that the summoner was actually the blood descendant of a cousin who had disappeared in the family. The only hope of the summoner who sacrificed his soul was to revitalize the family, restore the glory of the ancestors, and continue the family bloodline. It is easy for an alchemist master to revitalize a family and restore its glory, but it is much more difficult to continue the bloodline. It is impossible for an alchemist who already owns the Philosopher's Stone to have children with mortals, not to mention that the level of magic in this plane is primitive, and it has not yet reached the interstellar level. What is primitive cannot be more primitive. So Buel thought that he should find the two humans with the strongest bloodline in the Precious family in the world, and then let them have children with stronger bloodline. Therefore, Severus, depressed and awkward, campus bullying victim, Mr. Snape, who was in the second grade of Hogwarts, had a mysterious cousin guardian on the Christmas Eve of the year when he had just lost his parents... And Oscar, the face-controlling peacock, scientific atheist, and Cabodiri, who was far away in the United States, felt a chill in his back... He didn't know that the scientific world he had lived in for more than ten years was about to jump to the magic channel...