After a mysterious accident, former salaryman and avid gamer Hajime Kanda wakes up as Reid Valdia, the eldest child of a seemingly normal noble family, in the world of an otome game he once fully cleared. He knows the terrible future that awaits the Valdias: a fate full of death and condemnation. In the main story, Reid is merely a petty villain, but he possesses exceptional stats that will allow him to grow incredibly powerful. To avoid the coming conflict, he must bring his fractured family together by being sweet to his younger sister, getting in his father's good graces, and curing his mother's terminal illness. Reid is determined to save his family from its dark destiny by playing by the rules. The story follows Reid as he navigates noble society, revolutionizes the country with inventions based on modern conveniences like hand lotion and radio calisthenics, learns magic, and builds relationships with a cast that includes elves and beastgirls. He also unexpectedly finds himself in a political engagement at a very young age. A significant narrative arc involves him confronting his father and revealing the truth of his reincarnation. As he progresses, Reid must balance his knowledge from the game with the genuine emotions and trauma of his new life as a child, all while working to alter the story's tragic outcome.