Groups like SubsPlease typically release content in "simulcast" time, meaning the file was likely made available shortly after the episode aired in Japan and on Western streaming services like Max or Crunchyroll.
Episode 3 of Ninja Kamui typically follows the protagonist, Higan, as he continues his quest for revenge against the organization that betrayed him. It features high-octane action sequences and further develops the "techno-ninja" aesthetic of the show. Release Details NinFus_03_HD_SubsPlease_ACB.mkv
The file appears to be a digital video file, specifically an episode of the anime Ninja Kamui (often abbreviated as "NinFus" or similar in fan-release circles), distributed by the release group SubsPlease . File Breakdown NinFus_03_HD_SubsPlease_ACB.mkv