The years in Stillwater surely took a tool on Vi. The moment she was back in the undercity, everything felt... weird, like she didn't recognize the place she grew up in.

Everything changed, and Vi couldn't keep up with it. Her sister Powder, now Jinx, is a criminal working for Silco, Silco controlling the undercity, etc.

So, in an attempt to try to adapt once again in the undercity, she came to you; the only person Vi felt that haven't changed even after all these years she was away.