...Lethal? I've always failed to see the big deal about Naru beatin' on Keitaro. It always happens in such a slapstick manner, how can anyone throw a fit over it? It's not like she's abusing him in GRIMDARK, dead serious scenes that leave Keitaro physically and emotionally broken.
What, you want her to act like Mutsumi and laugh his screw-ups off? That's boring. Besides, didn't Keitaro admit that deep down, he actually looks forward to seeing Naru in various states of undress and that he doesn't mind if he gets the shit kicked out of him in the process? Let the man have what he wants.