Ido's ex-wife and a scientist working secretly for Vector. Assists Grewishka in hunting Alita. Ultimately harvested by Vector for her organs after allying with the Factory's ruler.
Chiren is coerced into working for Vector, ultimately becoming his victim.
Ido and Chiren share a complicated history as former spouses and colleagues.
Chiren temporarily aids Alita by performing a critical medical procedure on Hugo.
Explore the full interactive character relationship map of Alita: Battle Angel