Have you recommended a novel where the male protagonist becomes the size of a thumb?

I recommend " After I became small, I became a big boss's little cutie ". It tells the story of how she fell into her best friend's brother's bowl after being reborn as a thumb girl in the first year of junior high school. She worried every day that a certain part of her body would be taken away for research, and finally married the CEO. I hope you like my recommendation.