Peorth ropes Keiichi into going on a date with her, but her attempt to win him over proves much easier said than done as Belldandy, Urd, and Skuld join them on a group date.
Summary
Peorth reads one of Skuld's manga, unimpressed with its childish depiction of dating on Earth. Keiichi then arrives home, and Peorth excitedly meets him at the front door, again putting her arms around him. Keiichi is getting tired of this routine and asks if she can go home already, but Peorth reminds him that if he just told her his heart's desire, she could return anytime. With all the talk about desires, Keiichi murmurs that even she must have some desires, but Peorth interprets this as Keiichi wanting to grant her wish. Of course, she knows he didn't mean that, but she suddenly finds the idea intriguing.
Peroth's wish for Keiichi is to go on a date with him tomorrow. While he couldn't bring himself to reject her offer, Keiichi knows he must tell Belldandy. He goes to her room to try and explain what's happening to her in a way that sounds natural, which he flatly fails at. Belldandy in response tells him that she'll prepare a picnic lunch for "all of us", which makes Keiichi freeze in place.
The next day Peorth wears a nice dress at the station in Nekomi awaiting Keiichi, having arrived thirty minutes early in true shoujo manga fashion. She tells herself that she is a master of dating because of the research she did by reading manga and has her date with Keiichi planned out as follows: they will watch a romantic movie, drift through the fantastical aquarium, have a delectable lunch, seal their bonds of love at an oceanside park, and finally spend a fiery night at a hotel (Peorth had also been reading josei manga). However, when Keiichi greets Peorth, she is shocked to find that Belldandy, Urd, and Skuld have also tagged along! Keiichi explains to her that this is what's known as a "group date", and Peorth has to keep her composure and go along with it while she executes her plan.
Peorth directs everyone to the movie theatre, but her movie of choice is rejected when Keiichi says he can't afford tickets for all of them. Belldandy, however, has free tickets to another movie she got from the newspaper. It's an action film involving anthropomorphic foods, but while Peorth wants to leave, everyone else finds the movie riveting. Upon exiting, Peorth impulsively runs off with Keiichi to the Nekomi Aquarium, wanting to get away from Belldandy. However, as soon as they stop, Belldandy appears in front of them and says that she has free tickets for the aquarium.
Any romantic plans Peorth had at the aquarium are dead in the water when she finds that the mollusks on display aren't at all cute, though Skuld and the others find them fascinating. Peorth summons a storm of roses and tries running off with Keiichi again, but Belldandy finds them just in time for an outdoor lunch. Peorth contemplates trying again, but Urd stops her and once again tells her that she should give up on Keiichi, as Belldandy will find him no matter the odds. However, Peorth remains determined and tells Belldandy that she wants to go swimming, and thankfully, Belldandy has a group pass to a water park she won at a liquor store.
At the Mild Blue Nekomi water park, Keiichi sits in a sun lounger and watches Belldandy dive from up high, while Skuld shoots him with a water gun to dissuade him from looking at her big sister. From a distance, Peorth plans her next move: knowing that Keiichi can't swim, she'll discreetly push him into the water, immediately rescue him, and then administer mouth-to-mouth resuscitation, after which Keiichi will realize his feelings for her.
Belldandy tells Keiichi that she'll be going to get some drinks for them, but the moment he is alone, Peorth slings a rose vine his way and pushes him into the nearby swimming pool. However, Belldandy immediately senses that Keiichi is in danger and rushes to save him before Peorth can react. She uses magic to make all of the water fly out of the swimming pool, but this turns into a huge wave that engulfs Peorth and renders her unconscious. Peorth dreams that she is administering mouth-to-mouth to Keiichi, but she wakes up and realizes that Belldandy was giving her mouth-to-mouth! Unsurprisingly, shortly after Belldandy explains what happened, she passes out again.
Peorth wakes up later as Keiichi is piggyback carrying her while he and the others take a walk along the ocean at dusk. She laments that Keiichi was unable to fulfill any of her wishes, but accepts that this is as close as she's going to get to having an oceanside walk with him.