Fast Forward...

It's been a month since Krystal's first day in Seoul High and things are getting better each day. The school bell rang and the students are busy piling up in the corridors going to their classrooms. Their first period was homeroom but since their teacher, BoA, is on an official school-related meaning which means they are free for an hour and a half. 

"Uhmm...Hi.", a pretty and tall girl said to Krystal.

"Hello.", Krystal replied with a wide smile. "Do you need something from me?"

Krystal and the girl have been quite close since they've been consistent groupmates in different school events and subjects. Thanks to her Yunho-oppa who has been her partner-in-crime. Yunho always finds a way in changing the groups, always making sure that Krystal and the girl are in the same group.

"Yes, you see, it's my birthday tomorrow and I'm having a party. I'm inviting you. I hope you can come. Here's the invitation and the details are there."

"Oh, happy birthday then. I'd be happy to go. Thank you for inviting me."

The girl happily left leaving the pink-colored invitation on Krystal's desk.

"Good job for inviting me. You're really nice. But your parents have a debt to pay and it's time to collect them. Thank you very much, Choi Sulli.", Krystal said to herself.

"What did you say?", L interrupted Krystal's thoughts.

"None of your business."

"Whoa, looks like Princess is in a bad mood today. That's not very princess-like."

"And looks like the Prince finally came back to his senses. Wha