After hearing that children are going missing all over, Mana contacts Kitaro and the others and is ready to go with them to discover the truth behind the incidents, but Kitaro turns her down, saying that humans and youkai can't be friends. It's soon clear that a yokai that had once been sealed away is taking children to build a yokai castle. Then, Mana is abducted. Kitaro goes to rescue Mana with the Sand-throwing Hag and the Child's-cry Old Man!
But, usually the worlds of yokai
and humans don't mix.
.ولكن لا يختلط عالمي اليوكاي والبشر عادةً
Aber in echt vertragen sich
diese beiden Welten nicht.
Pero ambos mundos no pueden mezclarse.
En principe, les mondes des yôkai
et des humains ne se mélangent pas.
Mas, geralmente, o mundo dos Yokai e
o mundo dos humanos não se cruzam.
Но обычно мир ёкаев 
и мир людей не смешиваются.