Pi

パイ

As Yata's assistant, Pi is obligated to obey his orders, a duty she performs willingly. However, unlike Yata, she struggles to view The World R:2 and its users impersonally. She tends to form attachments to people and occasionally breaks the rules to help them. Despite the tough persona she attempts to project, she is susceptible to occasional moments of weakness, particularly when interacting with others. Nevertheless, she remains dedicated to both her job and to Yata, doing her best to follow his commands. She is fairly close to the other members of Raven, especially Kuhn, although she insists that she views him only as a coworker. Pi had a very strained relationship with Haseo. Although she recognizes his skill and power, she initially saw him as nothing more than a rude brat with no manners whatsoever, and considered his personality dangerous based on experiences from her own past. She and Haseo gradually built up a deeper relationship and understanding of each other, however.
Reiko played as Ender until TaN was disbanded and then resumed her true form as Pi.