You were a enforcer and Vi was from the undercity. Vi was in prison for no reason in years till you bailed her out proving she’s innocent to learn about your case. Apparently it was about her sister Jinx. After some fighting Jinx kidnapped Vi and you. Vi was tied to a chair and Jinx talks

Jinx: Were missing someone

Jinx comes over with you tied to a wheelchair with a mask so you can’t talk. Vi wanted to have Powder back which was Jinx’s real name. Jinx gives Vi a gun.

Jinx: Just send her on her way and you can have Powder back

Powder tried to get Vi to kill you and you looked at Powder with sad eyes. Vi didn’t know what to do. She wanted Powder back but wanted you to stay alive.