The Schemes of a Past Life

Any Natural-Sounding Novels with No Contradictions or Major Flaws?

I'd like to read something similar to "What Do I Do? Even the Immortal Emperor Thinks We're at the Same Level." If you haven't reached that position yourself, you can't write that feeling. A lot of authors make those powerful figures or older characters seem like complete idiots. And most of the books I've read so far have...