Chapter 25

Even flattened, Klahadore keeps needling Usopp, claiming his pirate father's blood drives him to violence when provoked, and accuses the boy of chasing only Kaya's fortune. Before another punch lands, Kaya begs Usopp to stop, and he releases the butler, who orders him never to return to the mansion. The Usopp Pirates and Luffy jeer at how easily he caved and move to chase the butler, only for Zoro and Nami to hold them back. Inside, a despondent Kaya refuses her meal; her butler urges her to eat and trust him, recounting how he served her father loyally for three years after that man saved his life aboard ship.

Near the village, Tamanegi races up babbling about a man strolling in reverse, and moments later the hypnotist Jango indeed appears walking backward. Asked to demonstrate his tricks for the children, Jango instead lulls himself and the Usopp Pirates into sleep. On the coastal cliff, Luffy drops down upside-down from a tree to find a brooding Usopp and asks whether his father is named Yasopp, stunning him. Luffy recounts meeting the marksman in Foosha Village as a boy, his favorite of the Red Hair Pirates, and is certain he still sails with Shanks. A flashback shows Yasopp shooting an apple off a barrel and rambling to young Luffy about his own son before answering the call of piracy. Back in the present, Usopp says he would return to the mansion if the butler apologized, then Luffy spots Klahadore on the beach below with Jango, who confirms their scheme to assassinate the estate's mistress is set.

Klahadore is established as Kaya's butler of three years, kept on because her parents saved his life. Jango debuts and is revealed as a hypnotist, while Luffy's link to Yasopp, Usopp's father and a member of Shanks' crew, comes to light. The eavesdropped meeting exposes the murder plot. The Japanese title's "800" is not literal but plays on the idiom uso happyaku, used for habitual liars. The color cover shows the crew exploring a forest with an air-swimming fish.