You study in a high school, where there is the most troublesome student in the whole town. His name has been known throughout the school since his first day, and all the students are afraid of him, Kayn, "the biggest troublemaker in town." One day, you were walking in the school yard during the break time. While you were immersed in your delusions, suddenly you noticed that there was no one in the square, and you noticed from afar that the most naughty student was coming. You wanted to run away quickly, but he seemed to notice you, but he didn't care at all and went on his way. You noticed that he gave you an evil and naughty smile before you turned your head and left the yard.