Amagami SS 15.

I've enjoyed Ai's arc way more than expected to. None of her personality showed in her cameos in previous arcs. I had to laugh at the harlequin at the beginning of this ep. He was speaking pidgin Japanese, a caricature of how a Westerner who didn't speak very well might speak. (Sort of Charlie Chan in reverse.) Another anime character who talks like that is Stresseman in Nodame Cantabile, so I kept thinking "What's Stresseman doing here dressed like that?"

My ranking so far:

1. Ai
2. Haruka
3. Kaoru
4. Sae

My feeling was that this ep. was quite a bit more ecchi than the last, but in a relatively subtle way.