Ninjin

Ninjin is energetic, loyal and more courageous than his youth suggests. He participates enthusiastically in Usopp’s games but does not abandon him when the danger becomes genuine.

Like the other Usopp Pirates, he can be frightened and impulsive. The group briefly disbands when Usopp orders them away, then reunites after learning that Kaya is threatened.

Ninjin takes Usopp’s final instructions seriously. After the Black Cat Pirates are defeated, he accepts the crew’s dissolution and promises to pursue his own adult ambition.

Ninjin is an ordinary eleven-year-old child with no supernatural abilities or advanced combat training. He uses a frying pan as an improvised weapon.

Working with Piiman and Tamanegi, he can set simple traps, patrol the village and harass stronger opponents through coordinated attacks. Their determination matters more than their physical strength.

The children are unable to defeat Jango directly, but their resistance delays him and helps keep Kaya from being hypnotized into surrendering her fortune.

Ninjin appears as one of the three members of the Usopp Pirates. The group accompanies Usopp around Syrup Village and accepts his invented adventures as the basis of their play.

When Usopp learns of Kuro’s assassination plan, he orders the children to stay away from the battle. They later discover that Kaya has left her mansion and rush to protect her from Jango.

Ninjin, Piiman and Tamanegi lead Kaya through the forest, fight Jango with improvised weapons and use traps to slow his pursuit. Their resistance continues until Zoro arrives and defeats him.

After the battle, Usopp formally dissolves the Usopp Pirates before leaving with Luffy. Ninjin declares that he will run a tavern and remains in Syrup Village, where he later visits Kaya during her medical studies.

Usopp is Ninjin’s captain and role model. Ninjin imitates his enthusiasm for adventure and helps preserve his connection to Syrup Village after he leaves.

Piiman and Tamanegi are Ninjin’s closest companions and fellow members of the Usopp Pirates. The three patrol, fight and make their promises for the future together.

Kaya is the person the children protect during the Black Cat Pirates’ attack. They later keep her company while she studies medicine.

Jango pursues the children through the forest in an attempt to reach Kaya. Roronoa Zoro ultimately saves them by defeating him.