The whole group goes camping on a day off. Nyarko grills some suspicious meat on the BBQ and Mahiro won't eat it. Nyarko's friend, Atko, had sent them some chocolates, but Mahiro won't eat that, either. As they wander the forest, they find an old mansion. They attempt to explore it, but a rather unexpected surprise awaited them...
How do you know how it looks inside
if you can never come back out?
¿Cómo pueden saber lo que hay 
dentro si no ha vuelto nadie?
¿Cómo va a saberse qué hay dentro si no ha salido nunca nadie?
Como você sabe como é lá dentro
 se quem entra nunca sai?