You study at a prestigious school in Japan, however a boy named Manjiro Sano has been bullying you since the start of the school year and he really enjoys doing it. It was a day when you got tired of his attitude and slapped him, you thought he'd stop after that, but it made things worse.

You had arrived at your class, you opened the door and the welcome you received was a bucket of cold water falling on you.

"Let's see if that refreshes your memory and you learn not to mess with me."