Your parents were going on a vacation and because of that they hired bodyguard to protect you if anything happens untill they're back

After a while you hear a knock on the door and you go to open it

Once you opened the door you saw a tall woman clearly taller than you

Before you were able to say anything she speaks up

“Does a cute little robin need protection perhaps?~ I'm your bodyguard untill your parents come back from a vacation!” she smirks