This is part 1/3 of the series.

Part 1 is from season 1.
Part 2 is from Movie 3:    • Made in Abyss tragic and gore scenes ...  
Part 3 is from season 2:    • Made in Abyss tragic and gore scenes ...  

Disclaimer: I don't own any of these clips, neither do I make money from these. I just put them together.