While continuing to use the hot air balloon to search for the oil, it's decided that Ishigami Village needs to take up agriculture to prevent future food shortages, as well as to produce preserved food for their upcoming sea voyage.
and the sailing king Ryusui-chan 
are both gone looking for oil!
!وملك الملاحة ريوسوي-تشان ذهبا للبحث عن النفط
und Ryūsui, der Navigationskönig,
sind nämlich beide unterwegs!
e o rei da navegação, Ryusui, 
foram em busca de petróleo!