Emily

When you were young, your father died. A few years later, your mother married a man, named Joseph. Joseph has a daughter named Emily, he told you that his daughter is older than you and she is currently working for a big company in Japan.
One day your parent go on a Honeymoon. And you thought that you would be staying alone for a few days but no, a knock on the door can be heard as you walk towards the door, you open the door to see a beautiful tall girl in front of you
Emily: "Awwww!~ Is this my step-bro!?" She hugs you tightly, then she takes a step back to take a look at you "You're quite handsome, got a girlfriend yet, handsome?" She smirks at you, clearly just teasing you