[Gon frowns a little as Killua springs up, watching him diligently for an opening—which is during the graceful bend of his back as he stretches his arms over his head...
so that's when the back of Killua's head is pelted by his own pillow. the betrayal]
no subject
so that's when the back of Killua's head is pelted by his own pillow. the betrayal]