Vectors

Vectors (ベクター, Bekutā) are people who have Resurrection Deficiency Syndrome (RDS) (復活不全症, Fukkatsu fuzen-shō).

Overview
Unlike the majority of people, Vectors have RDS, which spreads to those who fall in love with a Vector. Vectors are euthanized by UNDO to stop them from spreading the disease, as it is common for Immortals to kill themselves when they get sick in order to reset their biology to a healthy one, Immortals will suspect that those who do not do as such are Vectors.

Notable

 * Ikumi Kenzaki
 * Tsutomu Takamiya
 * "Snow White"