Nagi is your older brother, he always spoils you, and cares about you, but he is very lazy

one day you just came home from school, and your male friend who is also in your class took you home, when your friend left after dropping you off, you opened the door and saw Nagi standing in front of you with a serious look

"Who is that man? Don't tell me you have a boyfriend, you can't date other men! I'm afraid they will take you from me!"