No one's POV: 

Since his arrival in Korea over the summer, Chinese exchange student Zhang Yixing has learnt quite a lot besides improving his language skills. He learnt that even though China and Korea were in the same continent, they were both very different countries with very different cultures. He learnt that he was going to stay with the headmaster of the school and his wife for the year he was there and whilst at first he was afraid of them, he soon opened himself up to them and by the end of his stay considered them his second family. He learnt that some of the students at the school he was going to were horrible to him and the other students who came. Yixing thought at first he was never going to make friends until he was sat next to a boy named Do Kyungsoo in maths and the two of them got to talking before he was introduced to Kim Jongin that exact same day.

Ah those two... complete idiots! They've been best friends since they were seven and grew up together. Yixing was to learn later on that Kyungsoo liked Jongin... a lot! He was also to learn that Jongin liked Kyungsoo but both of them were too afraid to admit it to the other. Like I said, complete idiots. 

On arrival to his third week of school, Yixing was able to pick up quickly that when there were large groups of students huddled together talking to people they wouldn't really speak to, he knew something was up
"What's wrong with them?" he asked the headmaster, pointing to the students 
"I don't know" he replied and with that Yixing shrugged his shoulders, said his goodbye to the headmaster and walked of into school to find the other two. 

Walking through the hall, he saw that students inside of the school were acting just a strange as the one's who were outside... what's going on? 
"Yixing" he heard a familiar voice call and when he turned around, saw Kyungsoo running up to him 
"Why is everyone acting... weird today?" he asked 
"Haven't you heard?" was Kyungsoo's reply and when Yixing shook his head, Kyungsoo frowned. 

"I thought you would have from headmaster Park" he muttered 
"Heard what?" Yixing asked, now he was confused 
"About the new science teacher" Kyungsoo replied 
"Is that why everyone is" began Yixing before waving his hands around at the students around the two of them and Kyungsoo nodded before leading Yixing to their homeroom. 

"What's so special about the teacher?" Yixing asked and both of them jumped when Jongin appeared behind them saying 
"It's because the teacher before him had a breakdown and the new guy will be the replacement" before pouting when both Yixing and Kyungsoo hit him for scaring them 
"How do you know if the new teacher is going to be a guy? They may be a girl" Kyungsoo asked and Jongin smiled 
"Au contraire my friend, I overheard the other science teachers in the staff room this morning talking about the teacher and specifically heard them say he" he replied whilst Kyungsoo shook his head. 

"Well I hope he or she is nice and actually knows what they're talking about" he said and Jongin nodded in agreement 
"Why was the last teacher that bad?" Yixing asked 
"He had a mental breakdown because he couldn't control his students... of course he was a bad teacher" Jongin replied and Yixing's eyes widened... we're the students that bad here? 

-------

By lunchtime the buzz about the new teacher had increased ten fold. Kyungsoo and Yixing had no idea what he or she was like seeing as they hadn't had a lesson with the teacher yet and were just going from what other students were telling them which so far was actually quite positive 
"The new teacher is a guy" Jongin said, joining the other two and plonking his lunch onto the table 
"And you know that for a fact?" Kyungsoo asked when Jongin nodded. 

"Because I had him just now" he added after swallowing his food 
"What lesson does he teach?" Yixing asked 
"Science"
"What's his name?" Kyungsoo asked 
"Well headmaster Park expects us to call him Mr Kim, he told us we could call him Joonmyeon" Jongin replied. 

"Is he any good?" Yixing asked and Jongin nodded his head 
"He's awesome! The lesson was so much fun. We weren't sat down all of the time, we learnt something new for once and actually got all of our work done" he replied before frowning 
"What are doing?" he asked Kyungsoo who was checking his timetable 
"He's the one who took over from the one who just left right?" Kyungsoo asked and Jongin nodded as Kyungsoo turned to Yixing. 

"We have him next" he said and Yixing frowned 
"Do we?" he asked and went to check his timetable 
"Don't worry about it, you're going to love his lessons" Jongin said and continued with his lunch. Yixing and Kyungsoo weren't so convinced; just because Jongin said this Mr Kim was good, didn't mean that was neccessarily true.  

......

Waiting for the teacher to arrive, everybody was speaking to each other excitedly about him. Everyone wanted to know what he looked like, how old he was, whether the word that was being spread around about him was true.
"Sorry I'm late" came a voice and the class fell silent as the teacher walked into the room. It was there that the class decided he was cute! Heck he looked as if he could have been a student himself! 

Sorting himself out, the new guy turned to face his class... man students looked creepy when they were just doing nothing but staring at you  
"Hey guy, my name is Kim Joonmyeon and I'll be your new science teacher" he said, finally introducing himself to the class and with a smile, got the lesson underway...