Upon hearing Mistuki's suggestion, Hinata immediately perks up. "Seriously? Can we do that? Can we? I don't even know where to start with mine!", she exclaims with an exaggerated groan.
It does occur to her that she might have been able to at least come up with an outline if she had started working on it when it was assigned, but she'd had kung fu lessons, and then decided to go running, and then been invited to Hisoka's house, so it wasn't as though it was her fault that she couldn't find time before.