"Made in Abyss" is a Japanese manga and anime series created by Akihito Tsukushi. It follows the journey of a young girl named Riko who dreams of exploring the Abyss, a vast and mysterious chasm filled with ancient relics and strange creatures. Riko discovers a robot boy named Reg at the Abyss's edge, and together they embark on an adventure to uncover the secrets of the Abyss and find Riko's mother. The series is known for its stunning artwork and deep emotional themes, exploring the bond between Riko and Reg as they face various challenges. The Abyss itself is divided into layers, each with unique environments and dangers, making their quest perilous and captivating.