Series Continuity

The Made in Abyss story has seen multiple adaptations. To help guide fans of the series, we have compiled a list of notable changes made between different media.

Volume 1
Chapter 1: Orth: The City of the Great Pit
 * The beginning sequence with Riko, Nat, Shiggy and Kiyui originally takes place in the classroom of the orphanage while in the anime it takes place inside Riko's room chronologically after the introduction of Reg's character; Nat and Shiggy also do not make fun of Riko.
 * Riko is shown to prepare for her trip the night before.
 * The sequence where Riko and Kiyui hang out in Laffi's shop takes place chronologically after Reg's character introduction in the anime.

Chapter 2: The Abode of Trees and Fossils
 * After being saved by a strange light, Riko finds that Nat is safe and makes up an excuse to go look for the source of the light.

 Chapter 3: Riko's Room: Former Torture Chamber 
 * Reg notices a symbol on his helmet, unlike in the anime where he doesn't try it on.
 * Reg hides alone as Jiruo comes back for Riko, who had escaped.

 Chapter 4: Belchero Orphanage 
 * Reg's name is revealed during his introduction to Jiruo.

 Chapter 6: Premonition 
 * Riko reveals Lyza's Letter to everyone and her plans of leaving into the Abyss in Reg's recollection of the previous night.

 Chapter 7: Eve of Departure 
 * Reg and Nat visit the relic appraisal shop after the trip to the Abyss where Reg finds out what a Princess Bosom is.

 Chapter 8: Here We Go! 
 * Reg looks for Nat in his room before meeting up with Riko and Shiggy.

Volume 2
 Chapter 16: A Vile Mentoring Method 
 * Ozen recalls her relationship with Lyza, leading up to Lyza's face-reveal.

Volume 3
 Chapter 17: Survival Training 
 * Ozen mentioning that there are creatures living along the path to the bottom of the netherworld called "Gatekeepers" only happens in the manga.

 Chapter 18: The Depths' Third Layer: The Great Fault 
 * Riko uses a Sun Sphere to stagger the Crimson Splitjaw and Reg does not use his Incinerator, instead he drives the Crimson Splitjaw away with a headbutt and a strike with his two hands.

Volume 4
 Chapter 26: A Fresh Start 
 * Nanachi measuring the Backpack on Reg.

Season 1
Episode 1: The City of the Great Pit
 * After luring the Crimson Splitjaw and falling down a hole, instead of staying in place Riko gets chased until she is ultimately saved from the Crimson Splitjaw by a mysterious light.
 * Nat's state is not revealed until after Riko finds Reg.
 * After hearing Jiruo coming back for Riko, instead of hiding and letting Riko take further punishment, Reg makes use of his extendable arms and helps Riko escape.
 * Riko names Reg after they escape from Jiruo, instead of being part of Reg's first meeting with Jiruo.

Episode 2: Resurrection Festival
 * The explanation for the curse is narrated by Shiggy instead of being a recollection of Jiruo's lecture by Riko.

Episode 3: Departure
 * Riko reveals to everyone the night before Reg's first trip as a Red Whistle Lyza's Letter and her plans of leaving into the Abyss, instead of happening as a recollection of Reg.

Episode 4: Edge of the Abyss
 * Reg faints after Riko's description of the Incinerator.

Episode 5: Incinerator
 * Example

Episode 6: Seeker Camp
 * Reg asks directly whether Marulk is a girl.
 * The sequence concerning Riko's discovery of the headless monster and telling Marulk and Reg happens chronologically, not in flashback format.

Episode 7: The Unmovable Sovereign
 * Habo's account about Ozen is shown before the reveal of Riko's birth.
 * Ozen only reminisces of her first encounter with Lyza and Lyza becoming a Black Whistle as she leaves her private room.

Episode 8: Survival Training
 * As Zapo mentions how Reg and Riko best learn to depend on one another, Ozen reminisces of her adventures with Lyza and the sequence of events relating to Riko's birth.
 * As Riko and Reg depart into the 3rd Layer, Ozen reminisces of Lyza leaving to the bottom of the Abyss and her promise to reveal the truth to Riko, leading up to Lyza's face-reveal.

Episode 9: The Great Fault
 * Riko and Reg encounter a Madokajack first inside the imprisoned pirate ship before the Crimson Splitjaw. Reg fires the incinerator at the Madokajack, leaving himself unconscious after escaping from the Crimson Splitjaw.
 * Reg wakes up and strikes the Crimson Splitjaw with a headbutt, Riko hands the Blaze Reap to Reg. Riko doesn't use a Sun Sphere and Reg does not strike the Crimson Splitjaw with his fists.

Episode 10: Poison and the Curse
 * Example

Episode 11: Nanachi
 * Example

Episode 12: The True Nature of the Curse
 * Example

Episode 13: The Challengers
 * The scene where Bondrewd checks that Mitty's Lamp has turned off occurs at the end of the episode, instead of right after Mitty's soul has been released.
 * Riko, Reg and Nanachi send a Mail Balloon, passing through every layer they've been so far and the people they've met until it reaches the 1st Layer where Nat and Shiggy pick it up. Nat and Shiggy return to Orth, where an abundance of Eternal Fortune petals lie on the streets.

Season 2
Episode 1
 * Example

Episode 2
 * Example

Episode 3
 * Example

Episode 4
 * Example

Episode 5
 * Example

Episode 6
 * Example

Episode 7
 * Example

Episode 8
 * Example

Episode 9
 * Example

Episode 10
 * Example

Episode 11
 * Example

Episode 12
 * Example

Movie 1

 * Example

Movie 2

 * Riko and Reg encounter the Crimson Splitjaw inside the imprisoned pirate ship and are chased into a cave, Reg hesitates on whether to fire the incinerator but Riko hands Reg the Blaze Reap. Riko doesn't use a Sun Sphere and Reg does not strike the Crimson Splitjaw with his head and fists.

Movie 3

 * As the team travels down Nanachi climbs down a pillar into a pad while Reg brings Riko down with his arms. Reg reassures Nanachi that they can trust on their information regarding the layout of the abyss, Nanachi says they've got to respect their leader's opinion.
 * Reg can be seen zooming in to the collapsed delvers.
 * Nanachi throws the Amaranthine-Deceptor that bit them with vigor.