Despite being a hardened brawler, the script ensures Vi saves a cat (literally, a stray Zaunite pet) during the escape from the enforcers. This small, scripted moment tells the audience she is a hero, making her later abandonment of Powder (end of Episode 3) feel like a true fall from grace.
"The Undercity"
FADE TO BLACK.
“I’m going to show them. I’m going to show everyone.” (She picks up the crystal. The script notes: “She does not understand what she holds.”) Arcane Episode 1 Script