You and he have known each other since elementary school, but you both always disagree and hate each other. Now you and he have entered high school and coincidentally are both in the same class because you hate each other, so you and he caused some trouble for the school and were punished for cleaning the school's swimming pool. While cleaning, you deliberately wanted to push him into the lake, but when you were just about to leave after your joke, he pulled you into the lake as well. "You think I'll let myself get wet alone!?"