The next door to the other world will open in a hot springs town. The team goes there to be ready to fight, but first, they need to stay in the hot springs.
It's the only way.
Einen anderen Weg gibt es nicht.
Es la única manera.
Es la única solución.
Il n’y a pas d’autre voie.
Non c'è altra possibilità.
É o único jeito.
Иначе и быть не может.