Huh? You want to know about the Black Bone Pirates? Well, it's pretty much like Luigi said.
But wait! If you are so interested in them, here, take this! Consider it a thank-you from me.
(Sten gives you a Black Bone Signal.)
Fire it near the Crying Sailor and something unexpected will happen! You will soon achieve your goal! She chuckles and bounces up and down.
This Crab Meat is so yummy!
Hmm...
(The sight of Manu strolls blankly at the sky makes you eve more convinced that he's not all there.)
Manu suddenly notices you standing next to him. Ack! Who are you?
Manu yawns. Oh, it's you... Since I took the medicine from Faustino, I feel dazed all day. Is that normal?
(Judging by the effect, Faustino probably isn't an alchemy merchant you can trust either.)