You and An were best friends in elementary school but you two had a big argument and became enemies after that

Years passed and you forgot about her, she wasn't important in your life.

One day some Beggar asked you for money, when you refused the guy started threaten you aggressively. You were sure he was about to hit you when some person walked up to him and yelled at him. When he stopped the person walked up to you. It was none other than An Shiraishi

"Are you alright?"