Made in Abyss: Journey's Dawn(2019)
Original Title: 劇場版総集編【前編】メイドインアビス 旅立ちの夜明け
Videos: Trailers, Teasers, Featurettes
First compilation movie of the TV series which covers episodes 1-8 with new scenes added for the introduction. It covers the period from when Riko descends into the Abyss with her robot companion Reg, reaching the second layer where they meet the White Whistle Ozen who reveals information about Riko's mother.
Made in Abyss: Journey's Dawn streaming: where to watch online?
Currently you are able to watch "Made in Abyss: Journey's Dawn" streaming on HiDive.