beta
I've been reading this shit since the first one got released in Japanese on MRM. It's been interesting watching the author's art improve as each story gets more and more depraved. I think the wacky tits are also a part of that one fetish where a mangaka would make a handsome or pretty women have someone crazy going on with their body (ie wacky tits, weird genitalia, hairiness, something else wild, you get the point). In this case it's a literal manifestation of what the father in law has been doing to Haruka.