Made In Abyss Episode 13 -

: Nanachi’s request for Reg to use his Incinerator on Mitty is framed as an act of ultimate compassion. Because Mitty is functionally immortal, Nanachi feared she would be left to suffer alone forever after Nanachi’s own death.

The double-length finale effectively bridges the past and the present, focusing on the origins of Nanachi and Mitty. Made in Abyss Episode 13

: Analysts from The Chuuni Corner and Reddit note that the episode reinforces the series' core thesis: the human drive to explore the Abyss is a "one-way journey with irreversible loss," yet it is driven by a profound, almost spiritual longing. : Nanachi’s request for Reg to use his