Actors : Miyu Tomita, Kanon Amane, Kenshô Ono, Directors : Francesca Calo, Tomotaka Shibayama,
A high school student's life takes an unexpected turn when he meets an oni (demon) girl on a quest in the human world.
Actors : Inori Minase, Miyu Tomita, Shiori Izawa, Mariya Ise, Directors : Masayuki Kojima,
Riko, Reg, and their new friend, Nanachi, continue their journey down the Abyss and arrive at the 5th layer. But in order for them to continue to the 6th layer, they must encounter the haunting figure of Nanachi's past: Bondrewd the Novel.
Actors : Sayaka Ohara, Miyu Tomita, Aki Toyosaki, Mariya Ise, Directors : Masayuki Kojima,
A girl named, Riko and her robot friend, Reg, journey down into a deadly, otherworldly chasm, known as the Abyss, in search of her lost mother.
Actors : Eri Kitamura, Miyu Tomita, Shiori Izawa, Mariya Ise, Directors : Masayuki Kojima,
After departing from Ozen's camp, Riko and Reg continue their journey, encountering more dangers as they descend further into the Abyss.