Inventor Maru:
My invention? Ah, I'm flattered that you are interested! I am working on an "energy converter".
It transforms a common mineral into a crystal filled with powerful energy. If I am successful, I'm sure this will become as famous as the Soulshot!
I don't have enough time to review my blueprints and find all the materials I need, though... Will you help me find the materials?
I'll pay you for every mineral you bring me. Please bring as many as you can!
"Okay. I'll help you gather the materials."