duolingo
A language-learning app publicly released in June 2012, featuring multiple courses.
In July 2024, there was a collaboration between Duolingo and Genshin Impact, which had ]] and [[Klee (genshin impact)| as friends.
h4. Characters
* Duo (duolingo) (the service's main mascot)
* Lily (duolingo)
* Zari (Duolingo)
* Bea (Duolingo)
* Junior (Duolingo)
* Oscar (Duolingo)