: Anime - That Time I Got Reincarnated as a Slime (Season 3).
The filename refers to the second part of a multi-volume RAR archive for " That Time I Got Reincarnated as a Slime " (Tensei Shitara Slime Datta Ken) , specifically Season 3, Episode 1 (S01 often refers to the season index in specific release groups, or in this case, likely a typo/internal tag for Season 3, Episode 49 or similar "Season 3" content). TTJDS01WEB4K9.part2.rar
: Ensure you have TTJDS01WEB4K9.part1.rar as well. A 4K episode is usually 2–5GB, so it is often split into multiple 1GB or 2GB chunks. : Anime - That Time I Got Reincarnated as a Slime (Season 3)