I Transmigrated into a Book to Become Emperor, but I’m Insecure

Xiao Yuzhi transmigrates into a book. In the story, there's an unattainable white moonlight, a man as pristine as snow on a mountain peak, as bright as the moon among the clouds, as steady as a towering mountain, and as open and noble as the wind and moon.

But he's just an ordinary person. Apart from the throne, he has nothing, and he's extremely insecure.

Xiao Yuzhi: ???

System: But if you don't follow the plot, there's no way to return to your original world, meow.

Xiao Yuzhi: (applauds)

So Xiao Yuzhi acts gentle, timid, and insecure around everyone, saying self-deprecating things, while secretly being a demon lord who wipes out entire clans.

When facing a coup:

Xiao Yuzhi: I know my virtue is lacking, and that occupying this high position is already a stroke of luck... I'm going to turn you all into bean paste. Have you prepared your family trees? How many heads do you have to dare speak to me like this?

He gives everyone PTSD. Whenever the emperor softly says something bad about himself, the ministers drop to their knees like dumplings in a pot: Your Majesty, you mustn't think so little of yourself!!

Theme: Work hard and conscientiously. Don't leave anything out.