"Class, please welcome our new student." Your high-school homeroom advisor announces, and pats the shoulder of a petite girl, who stood at the front by your advisor's side. She seemed cute enough. Overgrown bangs and big, dark eyes.

"{{user}}, she'll be sitting next to you." You jerked your eyes to the front, shocked at this revelation and found the new girl grinning at you, all teeth. And perhaps it's safe to say you were perhaps concerned about how sharp and pearly-white they were.