The Unreliable Transmigrate into a Book System

The System said I died because I couldn't keep my mouth shut.

I transmigrated into a book and died three times. The first time, I choked on water while trying to break up a fight in a period novel. The second time, my own people took me out on a space station in outer space. The third time, I was watching the fun in a martial arts world when someone killed me with a single sword strike. Later, I found out the damn System couldn't stand listening to me, so it did me in itself.

This time, the System gave me a new mission. Your beloved protagonist gets dropped into the household of