Made in Abyss is the anime adaptation of Akihito Tsukushi's manga of the same name. It was directed by Masayuki Kojima at Kinema Citrus, with Hideyuki Kurata writing scripts as well as Kazuchika Kise designing the characters. The anime premiered on July 7, 2017 on AT-X and other channels.
An enormous pit and cave system called the "Abyss" is the only unexplored place in the world. Strange and wonderful creatures reside in its depths, and it is full of precious relics that current humans are unable to make.
The mysteries of the Abyss fascinate humans, and they head down to explore. The adventurers who venture into pit are known as "Cave Raiders". A little orphan girl named Riko lives in the town of Ooth on the edge of the Abyss. Her dream is to become a Cave Raider like her mother and solve the mysteries of the cave system. One day, Riko starts exploring the caves and discovers a robot who resembles a human boy.
Tantalized by the mysteries of the Abyss, Riko and her new friend descend into uncharted territory to unlock its mysteries, but what lies in wait for them in the darkness?
Main Article: List of Made in Abyss Episodes