Natsume and his friends go to a distant hot springs to help with the renovations.  When he arrives, he meets an old friend of Tanumas, but he quickly gets caught up in local youkai trouble.  Tanuma's old friend is actually a youkai, and she threatens terrible things if Natsume reveals her secret.
It doesn't necessarily have to 
be someone traveling alone.
Los que viajan solos
no son los únicos sospechosos.
Não precisa ser necessariamente
alguém que está sozinho.