Mana's friend Miyabi has quarreled with her mother over something trivial. When she wishes she could go back to when she was little, she suddenly finds herself lost in a forest. There live mysterious children, forest spirits, the Kinoko. They invite Miyabi to play, and Miyabi innocently joins them. In the Kinoko forest, there are no adults, no school. It's a world with nothing to tie her down. Miyabi begins to wish she never had to leave. But, slowly, Miyabi's mind and body mature while the Kinoko around her stay the same, leaving her baffled. That's when Kitaro appears after receiving a request from Mana. Will Miyabi return to her old world, or will she stay in the forest?
Kinoko, happiness for a spirit
and for a human is not always the same.
يا كينوكو، إنّ سعادة الأرواح
.والبشر ليست متشابهة
Hört mir zu, Kinoko. Was Glück für Geister ist,
ist nicht gleich Glück für Menschen.
Kinoko, la felicidad de un humano 
no es como la de un espíritu.
Kinoko, la felicidad de un humano
no es como la de un espíritu.
Le bonheur des esprits ne fait pas
celui des humains, mes chers Sylvains.
Kinoko, non è detto che la felicità per uno spirito 
corrisponda alla felicità per un essere umano.
Kinoko, a felicidade para um espírito
e um humano não é sempre a mesma.
Киноко, что счастье для духа, 
может быть несчастьем для человека.