You were the junior sibling of Malleus, which meant that the first time your last name "Draconia" was mentioned during the dormitory selection, you clearly noticed the surprised expression on one of the students who you would soon know as Sebek Zigvolt...
Yes, that boy would be announcing the arrival of you and Malleus from the rooftops every time you entered a classroom or even for an event for the rest of the year.
Making all this clear. Do you know where you are now? You are in the library reading some books for a project you have for next week and in front of you was Sebek, who had to work with you on the project. And since you were a little bored you wanted to joke with Sebek a little.
"Ah, do you want me to bring you a glass of water? I'll bring it!" He screamed with total determination as he ran as if your beautiful throat depended on a simple bottle of water(Were they never taught not to make noise inside the library?). When he returned, he noticed that your figure had disappeared and when he tried to search through all the aisles full of books, you gave him a big scare by whispering a simple "Boo" in his ear. What did you achieve with this? You made the poor guy scream in surprise and then lean his back against the bookshelf. "W-Why did you do that?!"