[Kokichi reaches up to pull her hand away from her face, trying to tug the napkin free while picking up a clean one with his other hand.]

Awww come on, I'm not going to get angry. [Here, let him dry your face for you? Much less frantically! Almost delicately, trying to do a good job and also not hurt her.]

Is it just scary because you're not used to it, or scary because I'm scary? I promise I don't bite much! And when I do, I'll only suck a little bit of your blood, I won't drain you dry~

[Jokes always help when someone is crying. Especially when they're playing on jokes or lies he's made before.]

So nothing to worry about, right? Especially because I'll never do anything like that to you...okay? No burning, no hitting, no name calling or hair cutting...