Rei Saiba

Rei Saiba (彩羽 レイ) is Neo Saiba's sister who was pulled into the Digital World with the Alias III members Sigma, Mari Goutokuji, and Hideto Fujimoto when her brother summoned them. Like and, Rei and Neo's names are puns on "01"; Rei's name is Japanese for "Zero" (零).

Appearance
Her hair has been alternatively coloured red or brown on the manga covers.

Description
Taichi Yagami and first meet her when two Flymon were chasing her. One is killed off by Zeromaru and the other flees. Though at first she is scared of Zero, after he saves her again, she warms up to him and decides to tag along with Taichi's group. She cannot walk in the Real World due to a recent accident, but she is able to walk in the Digimon world.

Rei wears a pendant she found when first entering the Digimon world that Zero likes. It turns out to be the Digimental that Neo intends to use on to keep it controllable.

She gets mad at Neo when she finds out that he wants Taichi and Co. out of the way, among other things. He has Rei locked away in a room, but she is freed by Pal and Pul. She, Sigma, and Mari escape from 's castle. When it came to the final battle between Taichi and Neo, Rei attempted to commit suicide via jumping off a cliff created by Arukadhimon's God Matrix. and is saved by Zeromaru. Neo stops the fight after hearing Rei's plea. When returned to the Real World, she keeps up her friendship with Taichi and the others.