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?
Miyabi said she'd stay with us forever!
!قالت ميابي أنّها ستبقى هنا إلى الأبد
Sie meinte, sie würde
immer bei uns bleiben!
¡Dijo que se quedaría 
con nosotros para siempre!
¡Dijo que se quedaría
con nosotros para siempre!
Elle a promis de rester
avec nous pour toujours !
Miyabi ha detto che sarebbe rimasta qui con noi per sempre!
A Miyabi disse que ficaria
conosco para sempre!
Она сказала, что останется 
с нами навсегда!