" Okay, that's all for today. Next week we're going to have a pop quiz base on today topic, so study for it. " Mr Park said sternly.   " Neh, ssem. " Everyone said in sync. Packing her belonging, Na Young stands up and start walking out of room. As she reach the door a soft voice called out her name.   " Na Young-ah, let's eat lunch together! Since I'm new here. " Eun Seo said cheerfully. Looking at the girl face, Na Young can't help but think ' doesn't she get tired? ' with all of that smiling. During class Eun Seo keeps on asking Na Young questions, Na Young can't help but feel uncomfortable. At the end of the day the girl in front of her is still her enemy girlfriend.    " Umm.... actually I.... " Na Young can't find a decent reason to decline the girl offer.    " She having lunch with me. "    Both of Eun Seo and Na Young turn around staring at the owner of the voice. The male walks over to Na Young and put his arm around her shoulder.   " Right, Na Young? " Bobby said showing his infamous eye smile. Na Young still trying to comprehend the situation that is happening right now. Seeing Na Young doesn't understand his plan, he nudge her to and use his head to giver her signal.    " Yea-yeah, we already agree on having a lunch together. " Na Young said nervously, scared that she's sound fake.    " Oh really, is it okay if I join you two? Like I won't disturb you guys. "    Na Young and Bobby just stare at the girl and words stuck in their throat. Don't know how to respond, Na Young keep on nudging the male beside her for answer. At that moment an ideal pops in Bobby head.   " Sure, why not it's not like me or Na Young mind? "    Na Young eye widened in shock as she turn her head to Bobby direction. " Are you crazy?! " she mouthed the words. " It's going to be fine. " Bobby mouthed the words back assuring her. By that both of them forgot that Bobby arm still hung loosely on Na Young shoulder.   " Really, that's great! I thought I have to eat lunch alone. " Eun Seo said happily at she still staring at Bobby completely forgeting Na Young presence.    " Then let's go. " Bobby said excitedly putting his arm down and entwined his hand with Na Young. Shocked because of the action, Na Young glare at him, " we have to act. " Bobby whispered. After that Bobby just naturally swing their entwined hands, trying to make it obvious to Eun Seo that's she being a clock blocker. As they reach the cafeteria, noise could be heard.    " You girls go in first while I make a call. " Bobby said while doing the call motion. Not knowing what's going on in Bobby head, Na