"SinB? What are you doing here?"

 " I could ask the same thing"

"I'm a prefect and I'm on patrol" Yerin sighed "Where are you going?"

 "I was looking for you..."

And for the first time, Yerin saw the Slytherin flustered. Cute. 

" Why?"

" To ask you out."

"Oh" Yerin blushed "W-why couldn't you ask me out during daytime?" 

"A Slytherin asking a Gryffindor out in front of everyone? Never!" 

"Then it's a no" 

"What?! NO, I-" 

"Try asking me out during lunch tomorrow. In front of EVERYONE" 

Yerin smirked and walked away, leaving SinB wondering why she had to fall for a stupid (but oh so cute) Gryffindor.