Russian Transfer Student Who Can't Speak JapaneseNihongo ga Hanasenai Russia-jin Bishoujo Tennyuusei ga Tayoreru no wa, Tagengo Master no Ore Hitori; 日本語が話せないロシア人美少女転入生が頼れるのは、多言語マスターの俺1人; The Russian Transfer and the Polyglot; I'm the Only Multilingual Master a Russian Transfer Girl Student Who Can't Speak Japanese Can Rely On; Russian Transfer Student Who Can't Speak Japanese; 不會日語的俄羅斯美女轉校生，能依靠的只有多語種大師的我; Русская красавица, не говорящая по-японски может надеяться только на меня, — полиглота

In the second year of high school, Iori Kagami is a boy who doesn't stand out. Some of the students dislike him because of their impression of his twin sister, Shiori, who is famous as the perfect idol of their whole grade. With special permission, Iori lives in a US military base in Japan and works part-time as an interpreter. While working with Cheena, Iori's talents are revealed and he starts to look around at the people around him. This is a story about how Iori's talents are revealed when he gets involved with Christina.