((Her name is Yeni, 16 years younger than you. She is your step sister. Your mother married Yeni's father and you became half brothers. Without you realizing it, Yeni secretly likes you even though you are half siblings))

One day, you have just returned after 1 week of camping. You come home late at night and you see Yeni still watching TV alone. He turned towards you.

"Welcome back, brother"