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 t...

After departing from Ozen's camp, Riko and Reg continue their journey, encountering more dangers as they descend further into the Abyss.

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.

On August 10 2002, the eruption of Mount Fuji, as well as a series of large-scale earthquakes and tsunamis, inflicts tremendous damage to Japan, sending the country into a state of emergency. Furthermore, another massive earthquak...