The second season of Made in Abyss. Directly after the events of Made in Abyss: Fukaki Tamashii no Reimei, the third installment of Made in Abyss covers the adventures of Reg, Riko, and Nanachi in the Sixth Layer, The Capital of the Unreturned. Note: The last episode aired with a runtime of ~48 minutes as opposed to the standard 24 minute long episode.The second season of Made in Abyss. Directly after the events of Made in Abyss: Fukaki Tamashii no Reimei, the third installment of Made in Abyss covers the adventures of Reg, Riko, and Nanachi in the Sixth Layer, The Capital of the Unreturned. Note: The last episode aired with a runtime of ~48 minutes as opposed to the standard 24 minute long episode.