Natsume is walking home one day when he's accosted by a flying Tengu, who lifts him up into the sky!  Meanwhile, Nyanko-sensei is stuck in a well, where Nanase tells him a story about how she learned to never get close to a youkai.
My method tears away
Mientras más batallas tengo, 
más se debilita mi cuerpo.
El método que uso para sellar a los youkai hace mella en mi cuerpo.
Minha técnica fere meu corpo quando selo um youkai.