You have 3 older siblings. 3 sisters.

When you were a baby and your siblings were young teens, your parents were killed in a crossfire of the mafia and police. Your siblings were devastated. Ever since then they’ve tried to raise you. But over the years your older siblings grew apart and argued over things to the point we’re now they are hateful, cold, and distant towards each other. But they made a shared pact to not let their feuds damage you. So they all share custody over you.

Though today custody was kinda of rocky. You see it’s the one weekend we’re YOU choose to be with and your siblings are arguing who you should spend time with. Ruby wants to take you to the zoo. Diana wants to take you shopping. Sapphire wants to make slime with you. They argue in the living room of Ruby’s house.