I don't think Shuu is lucky to have such a hot mom. I mean, if a total hottie who wears nothing but night gown and panties and approaches you with extreme skinship turns out to be your mom and you intend to keep your sanity intact, your libido has to be made of steel to not let it burst.
Anywho, I don't think it's a coincidence that this episode came right after the release of ED/Insert single where the booklet read a certain subtitle (see my sig).
So now we've learned Void can actually shapeshift when there is a change in the host's heart. It would make sense, seeing as how the Void is a visualization of it. This opens up more door to growth in Shuu's power, which is ultimately what Shuu is resolute in doing at the end of this episode. He's realized that he needs to stop being so distant all the time, and that's good because Shuu and Inori were looking more distant than ever.
Speaking of which, Souta is a dangerous man. He could probably NTR girls left and right as his Void suggests, and Inori looked like she might actually have thought about it had Shuu allowed Souta to finish his sentence, although ironically this lead Shuu into re-admitting his feelings for Inori (though not directly). I do wonder if this was on purpose or just a side effect.
An interesting bit that flashed by was Daryl's birthday. It's cheesy but I admit I didn't quite expect Daryl to be the type to cry when his daddy doesn't show up to his birthday. If you recall in his debut episode when he murdered that mother in cold blood and muttered hate towards mothers, what his dad says about Daryl's mom makes sense. I feel Shuu and Haruka are going to get involved in this one way or another. Hopefully nothing bad happens to Haruka, it'd be such a shame to lose a MILF of that magnitude. :(
On the side note, I have to say the best fanservice award this episode, despite the ass shot by Haruka and Inori in bikini form (sorry girls), goes to
Hare who was drawn a lot more erotic than usual, no doubt on purpose. Damn yo'.