Episode 12

The Little Mermaid (人魚姫) is the twelfth episode of the Toilet-bound Hanako-kun anime and the final episode of Season 1.

Synopsis
Kou and Mitsuba have met again, and Kou can't seem to sort out his complicated feelings towards Mitsuba not remembering him.

Nene worries about Kou, but Hanako-kun gets jealous and can't help but tease her over it. Seeing Hanako-kun make all sorts of unexpected expressions, Nene can't help but wonder;

"Maybe it'd be better if I were a supernatural too..."

As she whispers, the Mermaid's servants appear in front of her...!

Funimation Description
Nene made it back from the Hell of Mirrors in one piece, but she worries about what Hanako may be hiding from her. Just then, a strange fish appear, calling her their princess and asking her to join them as the mermaid's successor.

Plot
Nene is in her bedroom, currently feeding a sunflower seed to her hamster, Black Canyon. She reminisced on the recent events of seeing Mitsuba in the Hell of Mirrors boundary, including the demise of turning into the new No. 3 due to Tsukasa's torments. She immediately becomes nervous for how Tsukasa will treat him after that, but realizes Kou must be worried as well due to his brief history with Mitsuba. Kou attempts to keep up a smile after explaining his meeting with Mitsuba, who had already forgotten about him, before leaving the school that evening. Behind Nene, there is a couple of fishes surveying from a puddle in the floor.

The next day, as Nene is seated in her class during a lecture about history, Hanako greets her unexpectedly by standing on her desk. She instinctively yelps, fuming as she hides her face behind her notebook. Hanako reasons that he just wanted to see her, before tuning onto Aoi, who becomes more and more concerned by her friend's talking to herself. Hanako begins by untying one of Nene's pink ribbons, relinquishing one of her braids. He asks what's been on her mind, to which Nene scribbles down notes about her concern for Kou. She says Kou must have felt lonely since Mitsuba has forgotten him, so she was wondering if there was a way to cheer him up. She turns to look at Hanako for any ideas, but Hanako deliberately hugs Nene after asking if she was only worried for Kou. She becomes stunned by Hanako's sudden embrace, before blushing frantically by Hanako's choice of words due to how lonely he was. She pushes him away from her, but Hanako's sullen expression proved otherwise when he played with her fingers. Nene realizes he really must have been worried for her, while Hanako occupies himself with brushing Nene's hair. When Nene sees her reflection in the mirror that Hanako handed, she screams at her atrocious hairstyle made to look like a pointed radish. She receives a light scolding from the teacher before lunch begins.

Aoi and Nene are having lunch in the school classroom, and Nene professes that perhaps different species aren't meant to understand each other after all. Aoi confuses apparition for abalone when she asks Nene who she had fallen in love with. Nene becomes dismayed by how many times Hanako had teased her yet doesn't reveal much about himself. His past self made Nene pitied him, thus leading her to not leave his side. She wonders if it were better if she became an apparition herself, until a boisterous voice interrupted her thoughts. She interrogates into thin air, before being told to look down: spotting a pair of fish in a puddle on her desk. She rushes out of the classroom before Aoi could get an answer from her.

She clings onto a tree in the schoolyard, threatening that if the fishes lay a hand on her, they'll get a punishment more severe than burning. The fish, unconvinced, continue to explain their purpose for being here. They promise to get her away from the reaches of the loathsome No. 7, due to having a part of the Mermaid inside of her. Because of that, Nene is destined to become the next ruler after having swallowed the Mermaid Scale. She is told that she will become the next princess, for her extraordinary beauty could hook any man to her side. But before she could say anything else, the branch snapped, causing her to fall to the ground. The fish persuades her that it would be better to leave No. 7, especially when he didn't accept her donuts and had treated her roughly. The Mermaid, however, is more caring about her followers. The pufferfish offers her the Mermaid's lifeblood to drink, which will allow Nene to formally create a bond with the Mermaid instead.

Characters

 * Yashiro Nene
 * Hanako
 * Minamoto Kou
 * Mermaid
 * Mokke
 * Minamoto Teru
 * Hyuuga Natsuhiko
 * Nanamine Sakura
 * Tsukasa