• The article discusses the latest episode of the anime series "Enjo Kouhai," which features a storyline involving sexy mermaid idols. The episode showcases the mermaid idols performing a concert, with the article praising the visuals and animation quality of these scenes.

• The article notes that the mermaid idol characters are depicted in a "sexy" manner, with the article describing their outfits and physical appearances. It suggests that this aspect of the episode may appeal to certain viewers, while acknowledging that it may not be to everyone's taste.

• The article concludes by stating that the episode is likely to be well-received by fans of the series, particularly those who enjoy the sexualized portrayal of the mermaid idol characters. It suggests that the episode is a highlight of the current season of "Enjo Kouhai."