Tensei Kizoku no Bannou Kaitaku: Skill wo Tsukatteitara Saikyou Ryouchi ni Narimashita

After dying from relentless overwork as a corporate drone, our protagonist is reincarnated into another realm as Noctis, the scion of a struggling noble family. Driven by the lingering exhaustion of his past life, Noctis makes a firm vow: to avoid strenuous labor entirely in this new existence and secure a life of absolute leisure. However, his ambitions are immediately challenged by the grim reality of his inherited domain. Situated near a massive forest, the territory is perpetually impoverished and constantly besieged by aggressive monsters. To complicate matters further, a devastating demon assault leaves the estate in ruins, claiming the lives of the former lord and most of the family, leaving only Noctis and his brother as the sole survivors. As he reaches adulthood, Noctis awakens to his bestowed abilities, discovering an exceptional and overpowered cheat skill: "enlargement and reduction." Armed with this formidable power and possessing a genuinely meticulous and orderly temperament, Noctis reluctantly steps up to assume the role of lord. His ultimate objective remains steadfast—to expertly develop his territory and transform it into an ultimate haven where he will never have to work again.