Ep 20. The Twin Idol

In episode 20 of Ultimate Otaku Teacher season 1, titled "The Twin Idol," the students of class 2-F are tasked with putting together a school festival. However, a problem arises when the idol group set to perform at the festival cancels at the last minute.

Enter the Kanzaki twins, famous idols who happen to have ties to the school. Their manager approaches Junichiro Kagami, the titular ultimate otaku teacher, and asks if the twins can perform at the festival. Junichiro is hesitant at first, knowing the chaos that surrounded the last school festival, but ultimately agrees.

The Kanzaki twins, Koyomi and Kurumi, arrive at the school and immediately attract a crowd. They are identical in appearance but have very different personalities: Koyomi is outgoing and confident, while Kurumi is introverted and shy. The students of class 2-F are starstruck and eagerly volunteer to help the twins prepare for their performance.

As they spend more time with Koyomi and Kurumi, the students begin to notice some strange behavior. Koyomi is highly competitive and often picks fights with others, while Kurumi seems to have a mysterious illness that causes her to faint frequently. Junichiro suspects that something is amiss but is unable to pinpoint exactly what.

Meanwhile, Junichiro's sister Suzune is up to her usual mischief. She has created a revolutionary new energy drink that she believes will be a hit at the school festival. She enlists the help of the Kanzaki twins to promote the drink but quickly realizes that they have their own agenda.

The day of the festival arrives, and the Kanzaki twins take the stage to perform. The crowd goes wild, but Junichiro is still uneasy. He notices that Kurumi looks weaker than ever and wonders if the performance is too much for her.

When the twins finish their set, they make an announcement that shocks the audience. They explain that they are not actually twins but rather one person, Koyomi, who has been posing as both twins for the sake of her career. Kurumi was created as a fictional character to appeal to a niche market that Koyomi couldn't reach on her own.

The students of class 2-F are stunned, and Junichiro realizes that this is the source of the strange behavior he noticed earlier. Koyomi was constantly at odds with herself, trying to embody two different personalities. And Kurumi's "illness" was just a convenient excuse to disappear and let Koyomi take over.

Despite the shocking revelation, the crowd is still enthusiastic about Koyomi's performance. And Suzune's energy drink is a smash hit, thanks in part to the Kanzaki twins' promotion. The festival is a success, and the students of class 2-F all learn valuable lessons about the importance of being true to oneself.

In conclusion, episode 20 of Ultimate Otaku Teacher season 1, "The Twin Idol," is a thought-provoking and entertaining episode that explores themes of identity and authenticity in the realm of celebrity. It's a must-see for fans of the show and anyone interested in anime that tackles complex issues in a lighthearted and enjoyable way.