Brother Wants to Lick the Heroine? Brother, I Seem to Be Pregnant

I read Chapter 20, and I feel like there are so many repetitive contents. I was originally interested in the plot, but after Chapter 20, I kept repeating the story about the heroine's brother talking about the hero's punishment and the heroine helping the hero anonymously submit a letter [what]

The plot is good, but it's so incoherent. Things I said before are inexplicably lost again later.