Nymph's vulnerability hits different when the show strips away the chaos for five minutes to let her ask something real. The pool episode commits to the bit so hard that the perversion becomes almost incidental to watching an emotionally fractured angeloid figure out what it means to need someone. It's ecchi comedy that earns its character moments because it never pretends to be anything other than exactly what it is.
The group heads to an indoor swimming pool for a day of fun, and things fall apart once Tomoki sets off on another of his perverted schemes. Meanwhile Nymph is struggling. The chains that bound her to her cruel original master have been cut, but now she has no one to serve, and she is a little jealous that Ikaros has Tomoki. She starts looking for a new master and wonders whether to ask Tomoki to take the role. The single ecchi comedy episode mixes sci-fi and supernatural elements. It was an original story packaged with the limited edition of the manga's ninth volume, and it was kept off TV for being considered too risky.