Sea Route of Silence Gang

Operating along the passage known as the Sea Route of Silence, this pirate crew makes its living by ambushing ships and stripping them of any treasure aboard. What sets the gang apart is its method, which relies on cunning and delay rather than a direct raid.

Because crossing the route takes a full two weeks, travellers always pause at a small port to load up on food and water beforehand. The gang exploits that stop by slipping a Moulding Mushroom into the supplies. The fungus spoils the rations, so that anyone aboard either starves or is poisoned by eating the tainted mushrooms. Once the ship drifts out of the passage a fortnight later carrying only corpses, the pirates move in and help themselves to whatever is worth taking. Their scheme unravelled against Naruto's party, who received an unexpected shipment of insect-based meals prepared by Shima and delivered by Gamatatsu through the Summoning Technique. With their strength restored, Naruto's group overpowered the gang and turned them loose with a single Moulding Mushroom as their only provisions, deaf to their begging.

The gang answers to a leader named Ubau. Several of its unnamed members bear a resemblance to hired hands from the Gatō Company.