Suisei can't stand it because duolingo kept bugging her about her small mistakes
Thumbnail : https://www.pixiv.net/en/artworks/86684365
Source : https://www.youtube.com/watch?v=XOrBxQlsh0w&t=770s
Suisei Ch : https://www.youtube.com/channel/UC5CwaMl1eIgY8h02uZw7u8A
Outro BGM : https://www.youtube.com/watch?v=z3fT6RYCDG0&t=2469s
Outro Angry Sui : https://www.youtube.com/watch?v=HHR49C9k77g&t=2637s
Outro Walking Sui : https://www.youtube.com/watch?v=n-Ht3aGvVUY