Short prologue animation released as a prelude and advertisement for the game Digimon Story Time Stranger . Set to Digimon Story Time Stranger's theme song "wherever you are", the Prelude short focuses on Inori and her younger brother just before the main story's events. (Source: Bandai Namco Entertainment's YouTube Channel)
Watch Digimon Story Time Stranger Prelude episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.