Language learning app platform Duolingo has launched its first anime-inspired short animated miniseries The Final Test on its official YouTube channel. The first episode premiered on October 13, 2025, and the complete series will feature five 60-second animated shorts.
The video description for the first episode lists the following Japanese voice cast:
- • Aino Shimada as Zari
- • Ryoko Shiraishi as Junior
- • Takayuki Nakatsukasa as Eddy
- • Tsuguo Mogami as Oscar
- • Yukako Kiuchi as Lily
- • Ambrose Yu as Duo
The Final Test was created in collaboration with animation studio Titmouse. All voice acting in the miniseries is performed in Japanese, with subtitles provided in English, Spanish, Portuguese, French, German, Hindi, Japanese, Korean, and Thai.
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An official press release for the series presents the main concept of The Final Test as:
“The Final Test” expands on the increasing connection between anime fandom and language learning. The series provides a fresh backstory for Duo and his friends: prior to becoming streak guardians, they were just average individuals. After being recruited by Duo to assist learners in staying motivated, the team faces various challenges to maintain their streak – and support one another.
The launch of the animated miniseries coincides with the launch of Duolingo’s revamped Japanese courses, now accessible to learners in all languages. Duolingo app integrations also feature custom lesson-complete animations and widget illustrations themed around The Final Test.
Source: press release
