I Reincarnated as Earnest, But This World’s Morals Are Broken

A mentally weak middle-aged man who cannot refuse women when asked “do it” finds himself swap-reincarnated with a boy in a medieval fantasy world. In this new realm, s*very, polygamy, and might-makes-right are the norm.

Using his modern knowledge and past experiences, he begins to stand out. However, by modern Earth standards, his actions are those of a s*mbag. The catch? He remains completely unaware of this fact. This is the story of a man who thinks he is serious and earnest, while inadvertently becoming a villain in the eyes of morality—a tale of war, politics, and harem building in a world where ethics are fluid.