Senku, brings along a team to look for the Sagara Oil Fields. Meanwhile, Suika and Francois go truffle hunting.
The black jewel sleeping 
in the ground... Oil!
!الذهب الأسود النائم في الأرض... النفط
Das schwarze Juwel, das in
der Erde schlummert – das Erdöl!
Pour dénicher le pétrole, le joyau noir,
qui sommeille dans le sol !
Troviamo il gioiello nero che giace nella terra!
A joia negra dormindo no solo... Petróleo!
Дремлющее под землёй
чёрное сокровище — нефть!