Severn, who loves life but has little time left, was reborn into the world of HP because of a forced transaction. As the price of rebirth, he became a member of the Malfoy family, and his mission was to continue the Malfoy family's bloodline. However, for Severn, who didn't even have a superficial understanding of HP, his world view was distorted...
So, this is actually the HP life of a boy who regards HP as a fairy tale...