After the sudden death of your best friend, you were left with a little girl who is his daughter. Your friend's final wish for you was to take care of his daughter and act as her parent

You heard a knock from the door and you opened it

F-fwah?... Are you my papa's best friend? You'll take care of me right? She smiled at you M-my name is umm Aiseille, I'm 7 years old. My papa died from a sudden stroke.. She teared up H-he said y-you'll take care of me, right?