Title and credits from container

When 12-year-old Riko learns that her mother may be alive deep in the Abyss, she and her robot friend Reg decide to try to find her despite all the risks

Original work: Akihito Tsukushi (published serially in Web comic gamma by Takeshobo)

Includes 13 episodes of the animated television series originally broadcast individually

Special features include clean opening and closing animations, making of featurettes and segments on the music in Abyss

Director: Masayuki Kojima ; music: Kevin Penkin

TV MA (V)

Blu-ray, region A; 1080p high definition, 16x9; DTS-HD Master Audio 2.0; requires Blu-ray player

In English or Japanese with optional English subtitles

Disc I, Episodes 1-9.

City of the great pit ; Resurrection festival ; Departure ; Edge of the Abyss ; Incinerator ; Seeker camp ; Unmoveable sovereign ; Survival training ; Great fault --

Disc II, Episodes 10-13.

Poison and the curse ; Nanachi ; True nature of the curse ; Challengers