Ranga was an ogre. However, he was also a strong ogre. Strong enough that he became one of the four most elite demons in the whole land. And, as with many other stories, his comrades betray him. Upon his death, he reincarnates as a normal human. Now, with all of the knowledge and strength of his former life, what do you think he’ll do with this new opportunity?
Finally. An overpowered mc who doesn't give into women. I know romance isn't a bad thing for manga. But op mc plus women = harem. And we all know that isn't good. This guy just wants to live a peaceful life. And when protagonists usually say that. It most times doesn't end up happening. But this one looks like it might actually (Probably won't) but overall, the story's very balanced and it's a good manga.