That evening, they literally spent their time in the library, rearranging the books.   "Finally, we can go home" Chanyeol said, stretching as he stood up.   "Krystal ah, are you going home by yourself?" Kai asked, "If you are, me and Chanyeol hyung can send you home, you know?"    "Aniyeo, Ilhoon oppa will fetch me" Krystal answered as she followed the two out of the library.   "Then..." Kai sighed.   "Why won't we keep you accompanied till he come?" Chanyeol said with a bright smile.   "What a good idea, hyung!" he excitedly squealed, "What shall we do, Krystal ah? Shall we play games?"   "Kwenchanayeo" she declined the offer politely, "He'll come in a few minutes"   "You don't want us?" Kai made a sad face.   "Ani! It's not like that!" she immediately denied and when she was about to tell her reasons for her denial, Chanyeol's phone rang.   "Yoboseyeo?" he answered, "Neh, hyung. Today is the day? I thought it is tomorrow. Arrassoyeo, hyung. I'll tell Kai too"   "Who's it, hyung?" Kai asked, puzzled, "And what do you mean 'Today is the day' ?"   "Suho hyung told me to hurry home" he explained shortly, "Fany noona is arriving Seoul today"    "Really? That was today?" Kai asked in surprise.   "Yes and we've to be home in 20 minutes. Hyung said we better not be late cuz if we did, Fany noona is going to throw a huge tantrum like that day"   Krystal let out a soft cough to catch the boys' attention.   "I'd be okay on my own" she said, "I think you should hurry up if you want to get back home in 20 minutes"   "We're sorry that we couldn't send you home today. We've to fetch someone important at the airport so..."   "It's okay" she assured them with a smile.   Chanyeol and Kai left after they said their goodbyes to Krystal.     And there, she waited.    30 mins. 1 hour. Still no sign of Ilhoon.   "Oppa's never late. Is something wrong?" she muttered as she dialed his number.    "The number you're trying to reach is currently..." the operator answered instead of him.   She started to get worried. Is he alright?   She was about to leave the school when she heard her name being called.   "Krystal!"    It was Sehun who shouted her name while running towards her.   "Sehun shi, why're you here this late? I thought you guys have someone important to fetch at the airport" she wondered.   "You mean Fany noona?" he asked which she nodded in response.   "It's okay. I have extra classes today so... By the way, why're you here this late? And alone?" he looked around for her friends but there were none.   "I was waiting for Ilhoon oppa to fetch me but there's still no sign of him showing up. So I'm about to go home by myself" she explained her situation, "Ilhoon oppa has never been late and today's totally unusual that he didn't fetch me"   "May be he has his personal problems?" he guessed.   "I don't know. I'm going to ask him when I get home"          Sehun and Krystal were walking side by side, heading towards her house. Sehun offered to send her home since it's dark and dangerous for a girl to go home by herself. Krystal bought his reasons and there.. they walked silently with their heads down either staring at the ground or kicking the pebbles on their way.    They were swaying their hands back and forth, just then, accidentally their hands brush against each other