In place of Ratman who cancelled at the last minute, Mana joins Kitaro and the others on their trip. They're headed to an inn exclusive to youkai - the Immortal Onsen. Everyone's getting the most out of the hot springs, but suddenly, the inn is wrapped in an unsettling noise. The source is underground, the riotous energy from Mt. Fuji. Appeasing it is the job of the owner of the inn, but the current proprietress, Nebutori, is so fat she can't always do her work. Mana offers to serve in her place. Mana and Kitaro go into the caves of Mt. Fuji, and a huge shadow closes in on them...!?
Considering that we're at hot springs,
wouldn't it be a waste not to relax?
بالأحرى، ألا ينبغي علينا الارتياح
بما أننا في الينابيع الساخنة؟
Im Gegenteil: Weil wir endlich im Onsen sind,
sollten wir’s ruhig angehen.
Si estamos en las aguas termales, 
¿no sería bueno relajarse?
Ya que estamos en las aguas termales,
hay que relajarse.
Les sources chaudes sont faites
pour se détendre, non ?
Proprio perché siamo alle terme 
sarebbe un peccato non rilassarsi, no?
Já que finalmente estamos nas águas
termais, não devíamos descansar um pouco?
Мы же на горячих источниках, 
грех как следует не расслабиться.