Bigro is one of Neos' four generals. Her partner is a bestial android named Iota, and their combination attacks proved difficult for Iczer-3 to counter at first. She loves Iota with all her heart, and when Iczer-3 kills Iota in battle, she collapses in grief, unwilling and unable to continue the battle any longer. This causes Iczer-3 to spare her life, even when she asked to be killed. Though Iczer-3 refused to finish her, Atros was more than willing to do so, and executed her.