Takarakuji de 40-oku Atattanda kedo Isekai ni Ijuusuru

Kazura’s life took an unexpected turn when a spur-of-the-moment lottery purchase landed him a staggering fortune of four billion yen. Yet, rather than opening the doors to a life of ease, his newfound wealth turned into a relentless curse. Overnight, he became the target of greedy relatives, aggressive solicitors, and swindlers of every stripe, all desperate to claim a piece of his winnings. Desperate to escape the suffocating pressure and the vultures circling his every move, Kazura retreats to his family’s ancient, crumbling estate—a secluded property he had inherited but never truly known. While exploring the sprawling manor that would become his sanctuary, he stumbles upon a hidden chamber harboring an impossible secret: a gateway to a parallel world. This strange new realm exists in a state of medieval simplicity, its technology and culture far removed from the modern civilization Kazura left behind. At first, his visits are cautious, driven by curiosity and the simple relief of escaping his reality. But as he begins to trade commonplace items from his own world and share fragments of his technical knowledge, he discovers a profound sense of purpose that his billions could never buy. In this backward land, the spoiled, paranoid lottery winner is slowly transformed, finding genuine connection, respect, and the true measure of his own worth—not in currency, but in the tangible impact he can make on a world that values him for who he truly is.