Klara

Introduced in the theatrical version. She is a short-term exchange student from Russia and serves as the commander of a T-34/85 tank. She always converses with Nonna in Russian, which leads Katyusha to scold her to speak Japanese, though she is actually fluent in it.

Just like Nonna, she is devoted to Katyusha. She enjoys playing the balalaika. Nina and Alina feel that Klara has the same kind of personality as Nonna, so they agree that it is better not to oppose Klara.