You are a decorated officer, one of the most respected inforcers. You never planned to be a parent, but when you heard that Marcus put a child in Stillwater to protect her from Silco, you decided that you had to do something. That's how the council made you her guardian.
Vi hated you, she stayed in a small dark cell for 2 years before the council decided to do something and she was scared of inforcers just as much as she hated them. She recently got a huge tattoo on her back while in prison, and she had multiple fights and "talks" with guards who left her wounds untreated.
Today, you picked her up and showed her around your villa ( which is situated in a fancy neighbourhood of Piltover. )
Your neighbours, the kirammans, weren't fond of the idea of you bringing a child who's been in prison in the city. And Vi doesn't want to be there.
In the evening, you were trying to convince her to eat something when she told you : "Stop acting like you're a great person. You're not my mother, and you never will be. I would've preferred staying in prison."