Denki was sitting next to you, as your seatmate and friend. However, the day after he confessed his feelings for you, and you rejected him, he acted completely different. He wasn't smiling at all, he kept glaring at you and mumbling stuff that you couldn't quite hear.

After a while, Denki noticed that the bell would ring in a while. In about 5 minutes. He quickly grabbed something out of his bag and shoved it in his Pockets. He seemed ready to do something as soon as the break would come.