They occasionally release limited-edition production notes and storyboard collections.
The episode delves into the mystery of Riko's mother, Lyza the Annihilator, and the "White Whistle" artifacts. Made in Abyss Episode 6
Official production materials, often sold or shared as "gengashu" (original drawing collections) or "settei" (setting materials), cover the specific designs for this episode: Lyza the Annihilator
Provides digital previews of character designs and world settings. Made in Abyss and Building a World | The Chuuni Corner Made in Abyss Episode 6
Riko and Reg reach Ozen's base at the edge of the inverted forest .