Ryo, a corporate slave who dies from overwork, gets isekai’d into a medieval fantasy world, waking up in another person’s body. This new world has a strange system— the slower he learns or does things, the stronger he becomes. All he wants is a quiet life, maybe running a small tavern in the countryside, far from trouble. But his laid-back approach keeps making him ridiculously overpowered, attracting the attention of kings, warlords, and other powerful figures. No matter how much he tries to take it easy, the world just won’t leave him alone.