A character introduced in Kyokugen Dasshutsu ADV: Zennin Shibou Desu. He is an AI created by Sigma (Kyokugen Dasshutsu) that resembles an anthropomorphic white Rabbit.
Not to be confused with Zero (Kyokugen Dasshutsu), the antagonist of the previous game, or Zero II (Kyokugen Dasshutsu), the antagonist of the following game.