Ore wa Seikan Kokka no Akutoku Ryoshu - Vol. 6 Ch. 29.1

[MangaDex]

 

[Goldenzeal]

Oh ye of little faith.

 

[breakthelimit]

Nothing is impossible, the guide got his back!

 

[p2x909]

A mecha is the romance of men

 

[Kaarme]

With the alchemy cube, he turn any old iron scrap into precious materials. The most difficult part for him is to explain how he came up with the priceless stuff. Since he's sitting in an academy building on the capital planet, he can't go hunting random pirates and claim their possessed wealth beyond measure (against anyone's expectations).