After defeating Five, Zero travels to the Land of Mountains and ends up at the Cliffside Path with no plan or idea of how to find Four. While fighting through the citadel, the group encounters a Cerberus obstructing their path. After cutting off two of its heads, it retreats. Later the beast appears again as the last line of defense before Zero lops off its last head. However, while Zero's back was turned, the severed head lunges at her and bites off her right arm before dying. Suddenly, the flower in Zero's eye grows large and she regenerates a new body.