Well, if we gotta pick between these ones. Then, I'd be either the sleepyhead or the gamer. Anyone not paying attention to the teacher, to be honest. xD Oh, it wasn't ourselves? 

Then, noboyuki is the good friend or the side character, lol. 

Don't ask me how fast I get jealous. A bit too fast. Don't do what I think you are going to do. >.<