Goro runs the bathhouse on Ukkari Hot-Spring Island and is the younger sibling of Toto, which makes him an uncle to Koza. First seen in Gedatsu's cover story, he spends years chasing a single dream of opening a hot-spring resort, finally pulling it off with help from a clumsy ally who falls out of the sky.
A length of cloth hangs across his shoulders above dark trousers, and a pale shirt stamped with a hot-spring emblem stretches over his somewhat heavy build. His face, ringed by cropped hair and a beard, strongly resembles that of his older brother.
One ambition defines him: to operate a hot-spring retreat of his own, a goal he finally reaches thanks to Gedatsu's unexpected aid. Although Gedatsu left a poor impression with his peculiar behavior when he first came to work beneath him, Goro handles his strange helper with steady patience.
While digging underground in search of a spring, Goro met Gedatsu, who had plummeted down from Skypiea. The two excavated together through countless failures until the Dirt Boss, once beaten, joined them and pinpointed the water; the Forest Boss and his baboons later lent their hands to raising the resort. A single dig accidentally bored the pair into a Yuba oasis in Arabasta, which happened to be the home of Toto and Koza. Goro returned afterward with Toto, Koza, and Karoo to inspect the building work, only to discover the baboons had already completed the entire place. He then opened a passage joining Arabasta to his island and hired Hasami to carry passengers along it. With the spring finished, he relaxed in the water beside Pell, Igaram, Chaka, and the duck troops, his lifelong wish fulfilled. The stamina he showed in constructing the resort points to real physical strength. A non-canon scene in One Piece: Stampede shows him bickering with Gedatsu and Doran over a business quarrel.

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Goro is the manager of a bathhouse on Ukkari Hot-Spring Island in One Piece, and the younger brother of Toto, which makes him Koza's uncle. He first appears in Gedatsu's cover story pursuing his lifelong dream of opening a hot-spring resort.
Goro spends years digging for a natural spring until he meets Gedatsu, who had fallen from Skypiea, and the two dig together despite repeated failures. The Dirt Boss eventually locates the water for them, while the Forest Boss and his baboons help construct the resort.
Goro is the younger brother of Toto and therefore the uncle of Koza in One Piece. His accidental tunnel into a Yuba oasis in Arabasta leads him to reunite with them, and Toto and Koza later visit his hot-spring island to inspect the finished resort.
Goro is single-mindedly devoted to his dream of running a hot-spring retreat, a goal he only achieves through Gedatsu's help. Despite Gedatsu's odd behavior when he first arrives to work for him, Goro treats him with patience.
Yes, Goro appears in a non-canon scene in One Piece: Stampede where he is shown bickering with Gedatsu and Doran over a business quarrel.
Looking for more on Goro? The One Piece Wiki on Fandom has a dedicated page with community notes.
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