Join the Fight! Transfer Student

'''Join the Fight! Transfer Student' (参戦！てんこうせい, Sansen! Ten Kōsei) is the first episode of the second season of Isekai Quartet'' and thirteenth episode of the full series overall. It aired on January 14, 2020.

Summary
The students have now finally settled into their new lives, but a new student has come to the school, and his name is… "Shield"?

Trivia

 * The opening theme of Isekai Quartet 2 was used as the closing theme for this episode.
 * Sebas Tian and Wilhelm act as staff at the School as groundskeepers.
 * As a connection to the first episode of Isekai Quartet overall, there was a view of Class 2 from the perspective of a newcomer standing in the classroom's doorway. Back then, it was Subaru Natsuki.  In this episode, it was Naofumi Iwatani.