NymphiaX
Ten understands almost everyone on the playground, he knows what they like, what they don't like, their hobbies. But Fourteen has managed to keep himself a mystery, Ten just can't figure him out. No matter how hard he tries, he still hardly knows anything about them, except the obvious.
Until Fourteen finally gives him a single lead: He likes pranking people. And he can be VERY convincing when he wants to be.
Surely doing just a prank or two with him couldn't hurt, right?