Tensura Nikki: Tensei shitara Slime Datta Ken

The Slime Diaries: That Time I Got Reincarnated as a Slime · 転スラ日記 転生したらスライムだった件

In between slaying monsters and negotiating with neighboring countries, Rimuru Tempest has his hands full attending to his kingdom alongside day-to-day matters. But whether it's expanding the farms in the summer heat or shoveling snow in the chilly winter, no task is too big for Rimuru and his friends!