Genre: Mystery

Watanuki brings to the shop a woman with an urge to always take irrational decisions in her choices.

In order to make the Pipe Fox revert to its original form, Yūko sends Watanuki to purify it in a mystical mountain, where he meets the Zashiki-warashi again.

The situation involving the twin sisters start to get dangerous as one of them starts to bleed for apparently no reason.

Watanuki and Doumeki meet a pair of twin sisters and even go to a date with them, but Watanuki can't shake the feeling there is something strange about the older one.