"Forgettable" is the best way I can describe this. It was a serviceable pass time but it's not nearly good or bad enough for me to remember an hour from now.
I'm deeply uncomfortable! Most smut is so far removed from reality that the situations could never happen. This is something that can and does happen in reality.
Considering that flustered attack obliterates everything within 1km of her and that dog survived without so much as a scratch. I can conclude that the puppy is leagues more powerful than the demon lord.