Color the Pool Red with Blood
Mahiro's mother, Yoriko, wins some tickets in a lottery for them to all go to the pool. Nyarko wears an amazing sexy and commando bathing suit to try to tempt Mahiro, as well as asking him to rub sun tan oil on her in an indoor pool. As Tamao works at the takoyaki stand that Luhi runs at the pool, she notices that Luhi seems to be troubled by something and tries to help her out...
Aired 27/05/2013EP 7 - Color the Pool Red with Blood
Nyarko-san: Another Crawling Chaos W
Nyaruko still wants Mahiro, as does Hasta. Cthuko wants Nyaruko, but believes both Nyaruko's and Mahiro's "first time" belongs to her. Mahiro's mother, Yoriko, puts up with all of it and cheerfully runs the house where they all live. Mahiro just wants some sanity. He doesn't want to be the love toy of a Nyarlathotepan, Cthughan, or a shots-like Hasturan. He may or may not hold out.
(Source: Anime News Network, edited)