Natsume is at home early one evening when he hears a knock on the door.  He sees Tohko outside, asking to be let in.  But when he opens the door, there's nobody there, and a gust of wind rushes past.  Another Youkai is after the book of friends!
I didn't want you to catch it, so...
Pero por precaución no me acercaré a ti.
Pero es mejor que no me acerque a ti.
Não queria que você ficasse doente...